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First description of the nest of White-browed Antpitta Hylopezus ochroleucus

First description of the nest of White-browed Antpitta Hylopezus ochroleucus Revista Brasileira de Ornitologia, 24(3), 213-216 SHORT-COMMUNICA ARTICLE TION September 2016 First description of the nest of White-browed Antpitta Hylopezus ochroleucus 1,4 2 3 Harold F. Greeney , Jefferson Lu is Gonçalves de Lima and Thiago Tolêdo e S ilva Yanayacu Biological Station & Center for Creative Studies, km 5 Via Las Caucheras, Cosanga, Napo, Ecuador. Sítio Pau Preto, 10, Zona Rural, CEP 63160-000, Potengi, Ceará, CE, Brazil. Rua Benhamin Constant quadra 34 casa 40, CEP 73330-074, Setor Tradicional, Planaltina, DF, Brazil. Corresponding author: revmmoss@yahoo.com Received on 03 November 2015. Accepted on 17 August 2016. ABSTRACT: The reproductive biology of White-browed Antpitta (Hylopezus ochroleucus) is completely unknown. We describe a nest and nestlings found at the Parque Natural Municipal do Distrito de Brejinho, Araripe, Ceará. Brazil. The nest was a loose, shallow, open cup of sticks built into a tangle of branches and vines 0.5 m above the ground. The two nestlings were first seen on 5 April 2015, with closed eyes, bright orange bills and mouth linings, and dark grayish-pink skin, devoid of natal down, with contour feather tracts beginning development (under the skin). Six days later they had a dense coating of red-brown, wool-like down, their eyes were beginning to open, and secondary feathers were emerging. We compare our findings to related species and other members of the family Grallariidae. KEY-WORDS: breeding biology, caatinga, Grallariidae, nestling, reproduction. Following the recent description of the Alta Floresta sister to the  Spotted Antpitta “species group” (Carneiro Antpitta (Hylopezus whittakeri) and splitting of & Aleixo 2012). White-browed Antpitta is a Brazilian Snethlage's Antpitta (H. paraensis) from Spotted Antpitta endemic, inhabiting the semi-deciduous and Caatinga (H. macularius) (Carneiro et al. 2012), there are currently woodlands of  northeast Brazil, from Ceará southward 10 recognized species of Hylopezus antpittas (Remsen- to Minas Gerais states. As it is known from few areas Jr. et al. 2015). Unlike the more montane Grallaricula that are formally protected (Anjos 2002, Dornelas et and Grallaria antpittas, whose reproductive biology has al. 2012), it is currently considered “Near Threatened ” received a good deal of recent attention (see Greeney et by BirdLife International (2015). Here we provide the al. 2008, Greeney 2012a, Greeney & Jipa 2012), the first information on the reproductive biology of White- breeding of lowland Hylopezus antpittas is relatively browed Antpitta, based on a nest found in the Parque poorly known (Krabbe & Schulenberg 2003). Nests Natural Municipal do Distrito de Brejinho, Araripe, are properly described for only three of the ten species: Ceará (7°13'28"S; 39°59'36"W, 690 m a.s.l.). Streak-chested Antpitta (H. perspicillatus; Skutch 1969, On 25 March 2015, at 10:45 h, JLGL and TT Pollock 2013); Spotted Antpitta (Tostain 1986); Masked received a response from a White-browed Antpitta Antpitta (H. auricularis; Maillard-Z. 2012, Greeney after playing a recording of its vocalization. When the 2014a). Kirwan (2009) made brief observations of an responding individual continued to vocalize, giving its inactive nest, apparently of Speckle-breasted Antpitta full song (“whu-whú, whu- whú-whu-whu-wheú-wheú- (H. nattereri), but the reproductive biology of White- wheú-wheú-wheú-wheú-wheú-wheú” following Ridgely browed Antpitta (H. ochroleucus) is completely unknown & Tudor 2009), they left the trail and discovered that (Greeney 2014b). the adult was responding while seated on a nest only 10 White-browed Antpitta was, for many years, m from the trail (Figure 1). After taking several pictures treated as conspecific with  Speckle-breasted Antpitta, from a distance, they left the area without flushing the despite striking differences in voice, plumage, habitat adult. On 5 April, at 10:30 h, JLGL flushed an adult and distribution (Whitney et al. 1995). Recent from the nest as he approached, revealing the presence of molecular studies, however, suggest that Speckle- two young nestlings (Figure 2). The adult dropped from breasted Antpitta is more closely related to Masked the nest and disappeared silently into the undergrowth. Antpitta, while White-browed Antpitta is most likely The young had t heir eyes still closed and were completely First description of the nest of White-browed Antpitta Hylopezus ochroleucus Harold F. Greeney, Jefferson Luis Gonçalves de Lima and Thiago Tolêdo e Silv a devoid of natal down. Their skin was dark grayish-pink injury during the brief period he remained at the nest. and their bills were bright orange. Contour feather This time, the nestlings were well-covered in dense, wool- tracts were visible under the skin. Although there are no like down feathers. The feathers of the capital and spinal concrete data available for other Hylopezus, based on direct tracts were dark rufescent brown, those of the humeral experience with the nestlings of Grallaricula (HFG, pers. tracts were slightly paler, and the feathers of the femoral, observ.), which also lack natal down (Greeney 2012b), we pelvic spinal, and ventral abdominal tracts were pale estimate that the young were no more than one day old. rusty-buff. F light feather pins were emerged through the On 11 April, at 08:20 h, JLGL again flushed a broo ding skin roughly 1.5–2 cm, with the primary feather sheaths adult from the nest. The adult's response, however, was unbroken and those of the secondaries with 1–3 mm of very different than on the previous visit. This time, after bright ochraceous-buff feather vanes exposed at their tips. dropping to the ground below the nest, the adult dropped The nestlings' eyes were just beginning to open, their bills its wings to the ground and ran back and forth in small were still bright orange, but with the inflated rictal flanges semi-circles, dragging its wings through the leaf litter. It slightly paler, more yellow-orange. We did not visit the remained within 1 m of JLGL and continued to feign nest again. FIGURE 1. Adult White-browed Antpitta Hylopezus ochroleucus at its nest, 25 March 2015, Araripe, Ceará, Brazil. Photo: Thiago Tolêdo. The nest itself was a rather frail-looking, shallow shade. The surrounding forest was typical deciduous cup built of loosely-woven sticks, leaf petioles, and thin Caatinga habitat with a relatively dense understory of vines (Figure 2), falling into the “low cup/base” category small dicots and tangled vines. It was in arid, uneven, of Simon & Pacheco (2005) and overall rather similar hilly terrain, more than 500 m from the nearest riparian to the nests of most Columbidae. It did not have a well- area. In order to minimize disturbance to the nest, we did defined inner cup lining, but thinner, more flexible not measure it directly. Instead, using a total adult length leaf petioles appeared to be more abundant within the of approximately 13 cm (Greeney 2014b), we estimate internal portions. It was built 0.5 m above the ground that the nest was 12–15 cm in diameter externally, with and supported from below by 5–6 thin, overlapping some of the longer twigs extending beyond the bulk of lianas and branches which were partially held up by a the nest an additional 4–5 cm. We estimate that the total dead, 3–4 cm-diameter stick angled at roughly 45° below external height (thickness) of the nest was 5–7 cm, the the tangle. The nest was fairly exposed a bove, with only internal diameter was 6–7 cm, and the internal depth sparse vegetation more than 1 m above the nest providing was 3–4 cm. Revista Brasileira de Ornitologia, 24(3), 2016 First description of the nest of White-browed Antpitta Hylopezus ochroleucus Harold F. Greeney, Jefferson Luis Gonçalves de Lima and Thiago Tolêdo e Silv a FIGURE 2. Unfeathered nestlings in the nest of White-browed Antpitta Hylopezus ochroleucus, 5 April 2015, Araripe, Ceará, Brazil. Photo: Jefferson Luis Gonçalves de Lima. The nest of White-browe d Antpitta, in being a in their covering of wool-like, reddish-brown down and broad, rather shallow cup somewhat poorly supported bright orange bills. Interestingly, the lack of natal down from below by overlapping small supports, is similar and subsequent development of dense reddish-brown in placement and general shape to those described down is a character that, so far as is known, Hylopezus for other Hylopezus (Krabbe & Schulenberg 2003). shares with Grallaricula (Greeney et al. 2004, Greeney & Compositionally, our nest of White-browed Antpitta Miller 2008, Niklison et al. 2008, Greeney & Jipa 2012, appears nearly identical to that of the single described Greeney et al. 2012). Thrush- like Antpitta (Myrmothera nest of Spotted Antpitta, described by Tostain (1986) as campanisona) also hatches with a bright orange bill being very sparsely-built of thin twigs, having little or and without down (Gustavo Londoño, pers. comm.) no inner lining, and bearing resemblance to the nests of and, though currently undescribed, should Myrmothera columbids. Nests of the other two species of Hylopezus nestlings later develop a similar coating of reddish with published information appear to differ in including down, then nestling appearance and development would more material (especially humid, decaying leaves) and appear to be fairly conserved between these three genera. by having at least a rudimentary lining of the inner cup These shared ontogenetic characters provide strong (flexible rootlets or thin petioles) (Skutch 1969, 1981, support for the hypothesis that Hylopezus, Grallaricula, Robinson et al. 2000, Maillard-Z. 2012). It appears that and Myrmothera form a sister clade to the remaining the nest of H. nattereri (Kirwan 2009, A. Bodrati, pers. antpitta genus, Grallaria (Rice 2005). Unlike members comm.) may be most similar to that of H. ochroleucus, of this clade, the nestlings of Grallaria hatch with natal but show some characters resembling the nests of H. down and their secondary coating of nestling down is perspicillatus and H. macularius. somewhat variable in color between species (Greeney et Streak-chested Antpitta, the only Hylopezus with a al. 2008, Greeney 2012b). Finally, the shallow, saucer- previously published description of its nestling, apparently like form of the nest of White-browed Antpitta provides hatches completely devoid of natal down (Skutch 1969, further evidence that Hylopezus also build nests similar 1981). There is no published description of the older to Grallaricula (Greeney et al. 2008) and Myrmothera nestlings for any Hylopezus species, but the nestlings (Tostain & Dujardin 1988, Barber & Robbins 2003, of Streak-chested Antpitta pictured in Pollock (2013) Greeney et al. 2005), but unlike the deep, bulk cup nests appear nearly identical to the nestlings observed here, of Grallaria (Greeney et al. 2008). Revista Brasileira de Ornitologia, 24(3), 2016 First description of the nest of White-browed Antpitta Hylopezus ochroleucus Harold F. Greeney, Jefferson Luis Gonçalves de Lima and Thiago Tolêdo e Silv a Grallaricula lineifrons in north-east Ecuador. Bulletin of the British ACKNOWLEDGEMENTS Ornithologists' Club, 132: 217–220. Greeney, H. F. & Miller, E. T. 2008. The nestling and parental care The publication of the paper was supported by the of the Slate-crowned Antpitta (Grallaricula nana) in northeastern donations of Matt Kaplan, Field Guides Inc., and John V. Ecuador. Ornitología Neotropical, 19: 457–461. Moore through the Population Biology Foundation and Greeney, H. F.; Solano-Ugalde, A.; Juiña-J., M. E. & Gelis, R. A. 2012. Observations on the breeding of Ochre-breasted Antpitta by a John Simon Guggenheim Fellowship to HFG. (Grallaricula fl avirostris) in Ecuador. Ornitología Colombiana, 12: 4–9. Kirwan, G. M. 2009. Notes on the breeding biology and seasonality of REFERENCES some Brazilian birds. Revista Brasileira de Ornitologia, 17: 121–136. Krabbe, N. K. & Schulenberg, T. S. 2003. Family Formicariidae (ground-antbirds), p. 682–731. In: del Hoyo, J.; Elliott, A. Anjos, L. 2002. Forest bird communities in the Tibagi River & Christie, D. (eds.). Handbook of the birds of the world, v. 8. hydrographic basin, southern Brazil. Ecotropica, 8: 67–79. Barcelona: Lynx Edicions. Barber, B. R. & Robbins, M. B. 2003. Nest and eggs of the Tepui Maillard-Z., O. 2012. Hábitat, comportamiento y nidificación del Antpitta (Myrmothera simplex). Wilson Bulletin, 114: 287–288. Tororoí Enmascarado (Hylopezus auricularis), en el norte de la BirdLife International. 2015.  Species factsheet: White-browed amazonia boliviana. Bachelor's Monograph, Santa Cruz de la Antpitta  Hylopezus ochroleucus. Downloaded from  http://www. Sierra: Universidad Autónoma “Gabriel Rene Moreno”. birdlife.org (Accessed on 20 October 2015). Niklison, A. M., Areta, J. I.; Ruggera, R. A.; Decker, K. L.; Bosque, Carneiro, L. S. & Aleixo, A. 2012. Molecular phylogenetics C. & Martin, T. E. 2008. Natural history and breeding biology of and chronology of the genus Hylopezus (Grallariidae). Cuzco: the Rusty-breasted Antpitta (Grallaricula ferrugineipectus). Wilson Abstracts of the IX Congresso de Ornitología Neotropical y el Journal of Ornithology, 120: 345–352. VIII Congreso Peruano de Ornitología. Pollock, H. S. 2013. Streak-chested Antpitta (Hylopezus perspicillatus). Carneiro, L. S.; Gonzaga, L. P.; Rego, P. S.; Sampaio, I.; Schneider, In: Schulenberg, T. S. (ed.). Neotropical birds online. Ithaca: H. & Aleixo, A. 2012. Systematic revision of the Spotted Antpitta Cornell Lab of Ornithology; retrieved from http://neotropical. (Grallariidae: Hylopezus macularius), with description of a cryptic birds.cornell.edu/portal/species/overview?p_p_spp=406441 new species from Brazilian Amazonia. Auk, 129: 338–351. Remsen-Jr., J. V.; Areta, J. I.; Cadena, C. D.; Jaramillo, A.; Nores, Dornelas, A. A. F.; de Paula, D. C.; Santo, M. M. de E.; Sánchez- M.; Pacheco, J. F.; Pérez-Emán, J.; Robbins, M. B.; Stiles, F. Azofeifa, G. A. & Leite, L. O. 2012. Avifauna do Parque G.; Stotz, D. F. & Zimmer, K. J. 2015. A classification of the bird Estadual da Mata Seca, norte de Minas Gerais. Revista Brasileira species of South America. http://www.museum.lsu.edu/~Remsen/ de Ornitologia, 20: 378–391. SACCBaseline.html (Accessed 20 October 2015). Greeney, H. F. 2012a. The nest, egg, and nestling of Stripe-headed Rice, N. H. 2005. Phylogenetic relationships of antpitta genera Antpitta (Grallaria andicolus) in southern Peru. Ornitología (Passeriformes: Formicariidae). Auk, 122: 673–683. Neotropical, 23: 367–374. Ridgely, R. S. & Tudor, G. 2009. Field guide to the songbirds of South Greeney, H. F. 2012b. The natal p lumages of antpittas (Grallariidae). America: the passerines. Austin: University of Texas Press. Ornitología Colombiana, 12: 65–68. Robinson, W. D.; Robinson, T. R.; Robinson S. K. & Brawn, J. Greeney, H. F. 2014a. Masked Antpitta (Hylopezus auricularis), In: D. 2000. Nesting success of understory forest birds in central Schulenberg, T. S. (ed.). Neotropical birds online. Ithaca: Cornell Panama. Journal of Avian Biology, 31: 151–164. Lab of Ornithology; retrieved from Neotropical Birds Online: Simon, J. E. & Pacheco, S. 2005. On the standardization of nest http://neotropical.birds.cornell.edu/portal/species/overview?p_p_ descriptions of Neotropical birds. Revista Brasileira de Ornitologia, spp=406761 13: 143–154. Greeney, H. F. 2014b. White-browed Antpitta (Hylopezus Skutch, A. F. 1969. Life histories of Central American birds, v. 3. Pacific ochroleucus), In: Schulenberg, T. S. (ed.). Neotropical birds online. Coast Avifauna No. 35. Berkeley: Cooper Ornithological Society. Ithaca: Cornell Lab of Ornithology; retrieved from Neotropical Skutch, A. F. 1981. New studies of tropical American birds. Birds Online: http://neotropical.birds.cornell.edu/portal/species/ Publications of the Nuttall Ornithological Club, 19: 1–275. overview?p_p_spp=407401 Tostain, O. 1986. Description du nid et de la ponte de deux Greeney, H. F.; Dobbs, R. C.; Martin, P. R. & Gelis, R. A. 2008. formicariidés guanais: Hylopezus macularius et Thamnophilus The breeding biology of Grallaria and Grallaricula antpittas. nigrocinereus. Alauda, 54: 170–176. Journal of Field Ornithology, 79: 113–129. Tostain, O. & Dujardin, J.-L. 1988. Nesting of the Wing-banded Greeney, H. F.; Hannelly, E. C. & Lysinger, M. 2004. First Antbird and the Thrush-like Antpitta in French Guiana. Condor, description of the nest and vocalisations of the Peruvian Antpitta 90: 236–239. Grallaricula peruviana with a northward range extension. Cotinga, Whitney, B. M.; Pacheco, J. F.; Isler, P. R. & Isler, M. L. 21: 14–17. 1995.  Hylopezus nattereri  (Pinto, 1937) is a valid species Greeney, H. F.; Hualinga-L., J. B. L.; Branstein, J. F. V. & (Passeriformes: Formicariidae). Ararajuba, 3: 37–42. Bixenmann, R. 2005. Observations at a nest of the Thrush-like Antpitta in eastern Ecuador. Cotinga, 23: 60–62. Associate Editor: Gustavo Cabbane. Greeney, H. F. & Jipa, M. 2012. The nest of Crescent-faced Antpitta Revista Brasileira de Ornitologia, 24(3), 2016 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ornithology Research Springer Journals

First description of the nest of White-browed Antpitta Hylopezus ochroleucus

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Springer Journals
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Copyright © Sociedade Brasileira de Ornitologia 2016
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Abstract

Revista Brasileira de Ornitologia, 24(3), 213-216 SHORT-COMMUNICA ARTICLE TION September 2016 First description of the nest of White-browed Antpitta Hylopezus ochroleucus 1,4 2 3 Harold F. Greeney , Jefferson Lu is Gonçalves de Lima and Thiago Tolêdo e S ilva Yanayacu Biological Station & Center for Creative Studies, km 5 Via Las Caucheras, Cosanga, Napo, Ecuador. Sítio Pau Preto, 10, Zona Rural, CEP 63160-000, Potengi, Ceará, CE, Brazil. Rua Benhamin Constant quadra 34 casa 40, CEP 73330-074, Setor Tradicional, Planaltina, DF, Brazil. Corresponding author: revmmoss@yahoo.com Received on 03 November 2015. Accepted on 17 August 2016. ABSTRACT: The reproductive biology of White-browed Antpitta (Hylopezus ochroleucus) is completely unknown. We describe a nest and nestlings found at the Parque Natural Municipal do Distrito de Brejinho, Araripe, Ceará. Brazil. The nest was a loose, shallow, open cup of sticks built into a tangle of branches and vines 0.5 m above the ground. The two nestlings were first seen on 5 April 2015, with closed eyes, bright orange bills and mouth linings, and dark grayish-pink skin, devoid of natal down, with contour feather tracts beginning development (under the skin). Six days later they had a dense coating of red-brown, wool-like down, their eyes were beginning to open, and secondary feathers were emerging. We compare our findings to related species and other members of the family Grallariidae. KEY-WORDS: breeding biology, caatinga, Grallariidae, nestling, reproduction. Following the recent description of the Alta Floresta sister to the  Spotted Antpitta “species group” (Carneiro Antpitta (Hylopezus whittakeri) and splitting of & Aleixo 2012). White-browed Antpitta is a Brazilian Snethlage's Antpitta (H. paraensis) from Spotted Antpitta endemic, inhabiting the semi-deciduous and Caatinga (H. macularius) (Carneiro et al. 2012), there are currently woodlands of  northeast Brazil, from Ceará southward 10 recognized species of Hylopezus antpittas (Remsen- to Minas Gerais states. As it is known from few areas Jr. et al. 2015). Unlike the more montane Grallaricula that are formally protected (Anjos 2002, Dornelas et and Grallaria antpittas, whose reproductive biology has al. 2012), it is currently considered “Near Threatened ” received a good deal of recent attention (see Greeney et by BirdLife International (2015). Here we provide the al. 2008, Greeney 2012a, Greeney & Jipa 2012), the first information on the reproductive biology of White- breeding of lowland Hylopezus antpittas is relatively browed Antpitta, based on a nest found in the Parque poorly known (Krabbe & Schulenberg 2003). Nests Natural Municipal do Distrito de Brejinho, Araripe, are properly described for only three of the ten species: Ceará (7°13'28"S; 39°59'36"W, 690 m a.s.l.). Streak-chested Antpitta (H. perspicillatus; Skutch 1969, On 25 March 2015, at 10:45 h, JLGL and TT Pollock 2013); Spotted Antpitta (Tostain 1986); Masked received a response from a White-browed Antpitta Antpitta (H. auricularis; Maillard-Z. 2012, Greeney after playing a recording of its vocalization. When the 2014a). Kirwan (2009) made brief observations of an responding individual continued to vocalize, giving its inactive nest, apparently of Speckle-breasted Antpitta full song (“whu-whú, whu- whú-whu-whu-wheú-wheú- (H. nattereri), but the reproductive biology of White- wheú-wheú-wheú-wheú-wheú-wheú” following Ridgely browed Antpitta (H. ochroleucus) is completely unknown & Tudor 2009), they left the trail and discovered that (Greeney 2014b). the adult was responding while seated on a nest only 10 White-browed Antpitta was, for many years, m from the trail (Figure 1). After taking several pictures treated as conspecific with  Speckle-breasted Antpitta, from a distance, they left the area without flushing the despite striking differences in voice, plumage, habitat adult. On 5 April, at 10:30 h, JLGL flushed an adult and distribution (Whitney et al. 1995). Recent from the nest as he approached, revealing the presence of molecular studies, however, suggest that Speckle- two young nestlings (Figure 2). The adult dropped from breasted Antpitta is more closely related to Masked the nest and disappeared silently into the undergrowth. Antpitta, while White-browed Antpitta is most likely The young had t heir eyes still closed and were completely First description of the nest of White-browed Antpitta Hylopezus ochroleucus Harold F. Greeney, Jefferson Luis Gonçalves de Lima and Thiago Tolêdo e Silv a devoid of natal down. Their skin was dark grayish-pink injury during the brief period he remained at the nest. and their bills were bright orange. Contour feather This time, the nestlings were well-covered in dense, wool- tracts were visible under the skin. Although there are no like down feathers. The feathers of the capital and spinal concrete data available for other Hylopezus, based on direct tracts were dark rufescent brown, those of the humeral experience with the nestlings of Grallaricula (HFG, pers. tracts were slightly paler, and the feathers of the femoral, observ.), which also lack natal down (Greeney 2012b), we pelvic spinal, and ventral abdominal tracts were pale estimate that the young were no more than one day old. rusty-buff. F light feather pins were emerged through the On 11 April, at 08:20 h, JLGL again flushed a broo ding skin roughly 1.5–2 cm, with the primary feather sheaths adult from the nest. The adult's response, however, was unbroken and those of the secondaries with 1–3 mm of very different than on the previous visit. This time, after bright ochraceous-buff feather vanes exposed at their tips. dropping to the ground below the nest, the adult dropped The nestlings' eyes were just beginning to open, their bills its wings to the ground and ran back and forth in small were still bright orange, but with the inflated rictal flanges semi-circles, dragging its wings through the leaf litter. It slightly paler, more yellow-orange. We did not visit the remained within 1 m of JLGL and continued to feign nest again. FIGURE 1. Adult White-browed Antpitta Hylopezus ochroleucus at its nest, 25 March 2015, Araripe, Ceará, Brazil. Photo: Thiago Tolêdo. The nest itself was a rather frail-looking, shallow shade. The surrounding forest was typical deciduous cup built of loosely-woven sticks, leaf petioles, and thin Caatinga habitat with a relatively dense understory of vines (Figure 2), falling into the “low cup/base” category small dicots and tangled vines. It was in arid, uneven, of Simon & Pacheco (2005) and overall rather similar hilly terrain, more than 500 m from the nearest riparian to the nests of most Columbidae. It did not have a well- area. In order to minimize disturbance to the nest, we did defined inner cup lining, but thinner, more flexible not measure it directly. Instead, using a total adult length leaf petioles appeared to be more abundant within the of approximately 13 cm (Greeney 2014b), we estimate internal portions. It was built 0.5 m above the ground that the nest was 12–15 cm in diameter externally, with and supported from below by 5–6 thin, overlapping some of the longer twigs extending beyond the bulk of lianas and branches which were partially held up by a the nest an additional 4–5 cm. We estimate that the total dead, 3–4 cm-diameter stick angled at roughly 45° below external height (thickness) of the nest was 5–7 cm, the the tangle. The nest was fairly exposed a bove, with only internal diameter was 6–7 cm, and the internal depth sparse vegetation more than 1 m above the nest providing was 3–4 cm. Revista Brasileira de Ornitologia, 24(3), 2016 First description of the nest of White-browed Antpitta Hylopezus ochroleucus Harold F. Greeney, Jefferson Luis Gonçalves de Lima and Thiago Tolêdo e Silv a FIGURE 2. Unfeathered nestlings in the nest of White-browed Antpitta Hylopezus ochroleucus, 5 April 2015, Araripe, Ceará, Brazil. Photo: Jefferson Luis Gonçalves de Lima. The nest of White-browe d Antpitta, in being a in their covering of wool-like, reddish-brown down and broad, rather shallow cup somewhat poorly supported bright orange bills. Interestingly, the lack of natal down from below by overlapping small supports, is similar and subsequent development of dense reddish-brown in placement and general shape to those described down is a character that, so far as is known, Hylopezus for other Hylopezus (Krabbe & Schulenberg 2003). shares with Grallaricula (Greeney et al. 2004, Greeney & Compositionally, our nest of White-browed Antpitta Miller 2008, Niklison et al. 2008, Greeney & Jipa 2012, appears nearly identical to that of the single described Greeney et al. 2012). Thrush- like Antpitta (Myrmothera nest of Spotted Antpitta, described by Tostain (1986) as campanisona) also hatches with a bright orange bill being very sparsely-built of thin twigs, having little or and without down (Gustavo Londoño, pers. comm.) no inner lining, and bearing resemblance to the nests of and, though currently undescribed, should Myrmothera columbids. Nests of the other two species of Hylopezus nestlings later develop a similar coating of reddish with published information appear to differ in including down, then nestling appearance and development would more material (especially humid, decaying leaves) and appear to be fairly conserved between these three genera. by having at least a rudimentary lining of the inner cup These shared ontogenetic characters provide strong (flexible rootlets or thin petioles) (Skutch 1969, 1981, support for the hypothesis that Hylopezus, Grallaricula, Robinson et al. 2000, Maillard-Z. 2012). It appears that and Myrmothera form a sister clade to the remaining the nest of H. nattereri (Kirwan 2009, A. Bodrati, pers. antpitta genus, Grallaria (Rice 2005). Unlike members comm.) may be most similar to that of H. ochroleucus, of this clade, the nestlings of Grallaria hatch with natal but show some characters resembling the nests of H. down and their secondary coating of nestling down is perspicillatus and H. macularius. somewhat variable in color between species (Greeney et Streak-chested Antpitta, the only Hylopezus with a al. 2008, Greeney 2012b). Finally, the shallow, saucer- previously published description of its nestling, apparently like form of the nest of White-browed Antpitta provides hatches completely devoid of natal down (Skutch 1969, further evidence that Hylopezus also build nests similar 1981). There is no published description of the older to Grallaricula (Greeney et al. 2008) and Myrmothera nestlings for any Hylopezus species, but the nestlings (Tostain & Dujardin 1988, Barber & Robbins 2003, of Streak-chested Antpitta pictured in Pollock (2013) Greeney et al. 2005), but unlike the deep, bulk cup nests appear nearly identical to the nestlings observed here, of Grallaria (Greeney et al. 2008). Revista Brasileira de Ornitologia, 24(3), 2016 First description of the nest of White-browed Antpitta Hylopezus ochroleucus Harold F. Greeney, Jefferson Luis Gonçalves de Lima and Thiago Tolêdo e Silv a Grallaricula lineifrons in north-east Ecuador. Bulletin of the British ACKNOWLEDGEMENTS Ornithologists' Club, 132: 217–220. Greeney, H. F. & Miller, E. T. 2008. The nestling and parental care The publication of the paper was supported by the of the Slate-crowned Antpitta (Grallaricula nana) in northeastern donations of Matt Kaplan, Field Guides Inc., and John V. Ecuador. Ornitología Neotropical, 19: 457–461. Moore through the Population Biology Foundation and Greeney, H. F.; Solano-Ugalde, A.; Juiña-J., M. E. & Gelis, R. A. 2012. Observations on the breeding of Ochre-breasted Antpitta by a John Simon Guggenheim Fellowship to HFG. (Grallaricula fl avirostris) in Ecuador. Ornitología Colombiana, 12: 4–9. Kirwan, G. M. 2009. Notes on the breeding biology and seasonality of REFERENCES some Brazilian birds. Revista Brasileira de Ornitologia, 17: 121–136. Krabbe, N. K. & Schulenberg, T. S. 2003. Family Formicariidae (ground-antbirds), p. 682–731. In: del Hoyo, J.; Elliott, A. Anjos, L. 2002. Forest bird communities in the Tibagi River & Christie, D. (eds.). Handbook of the birds of the world, v. 8. hydrographic basin, southern Brazil. Ecotropica, 8: 67–79. Barcelona: Lynx Edicions. Barber, B. R. & Robbins, M. B. 2003. Nest and eggs of the Tepui Maillard-Z., O. 2012. Hábitat, comportamiento y nidificación del Antpitta (Myrmothera simplex). 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Journal

Ornithology ResearchSpringer Journals

Published: Sep 1, 2016

Keywords: breeding biology; caatinga; Grallariidae; nestling; reproduction

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