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a project of the Yanayacu Natural History Research Group |
Family Formicariidae, Order Passeriformes |
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outlined on the NHEMA species list page. |
Abstract: Chestnut-crowned Antpitta occurs in Andean forests of Venezuela, Colombia, Ecuador, and northern Peru from 1200-3600 m. In the eastern Ecuadorian Andes it is one of the most numerous species by voice and is somewhat less difficult to see than most other antpittas. A nest of G. ruficapilla was discovered at 2250 m on the eastern slope of the Andes in Napo province, Ecuador. The nest was in a mat of live Chusqea bamboo branches 197 cm above the ground and was composed mostly of sticks and twigs, with additional bamboo leaves, sparse moss, leaf petioles, and some dicot leaves, with a sparse lining of dark rootlets. There was some original confusion about the color and form of the eggs of G. ruficapilla; however, in the well-documented nest above, the clutch consisted of two uniform turquoise or pale greenish-blue eggs with no flecking or spotting. Two adults were involved in care of the eggs and nestlings.
Relevant
publications:
Krabbe, N. & T.S. Schulenberg. 2003. Family Formicariidae (ground-antbirds). In: del Hoyo, J., Elliott, A. & Christie, D.A. (eds.). Handbook of the birds of the world, 8. Barcelona: Lynx Edicions.
Martin, P. R. & Greeney, H. F. 2006. Description of the nest, eggs and nestling period of the Chestnut-crowned Antpitta Grallaria ruficapilla from the eastern Ecuadorian Andes. Cotinga 26: in press.
Sclater, P. L. & Salvin, O. 1879. On the birds collected by the late Mr. T. K. Salmon in the state of Antioquia, United States of Colombia. Proceedings of the Zoological Society of London 1879: 486-550.
DATE LOCATION STAGE SOURCE of data 20 September 2004 SierrAzul, Napo, Ecuador,
2350m Incubation Martin & Greeney,
2006 11 March 2005 Yungilla, Azuay, Ecuador,
1700m Incubation HFG unpubl.
Photographs:
Eggs of G.
ruficapilla Egg # H05-152,
2005,Yungilla, Azuay, Ecuador

Complete clutches of G. ruficapilla in nest
Complete clutch at
Yungilla, Azuay, Ecuador

Nestlings of G. ruficapilla
Nestling of Grallaria
ruficapilla on the day of hatching. SierrAzul Research
Station, Napo, Ecuador Nestling of Grallaria
ruficapilla on the day of hatching. SierrAzul Research
Station, Napo, Ecuador Nestling of Grallaria
ruficapilla on the day of hatching. SierrAzul Research
Station, Napo, Ecuador Nestling of Grallaria
ruficapilla on the day of hatching. SierrAzul Research
Station, Napo, Ecuador




Additional photographs of G. ruficapilla
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Nest of Grallaria ruficapilla, in open field of second growth, Yungilla, Azuay, Ecuador. Photo by H. F. Greeney. |
Nest of Grallaria ruficapilla, in open field of second growth, Yungilla, Azuay, Ecuador. Photo by H. F. Greeney. |
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Hatching day at a nest of Grallaria ruficapilla, Yungilla, Azuay, Ecuador. Photo by H. F. Greeney. |
Adult brooding two nestlings in the early evening, Yungilla, Azuay, Ecuador. Photo by H. F. Greeney |
Adult Grallaria ruficapilla incubating two eggs, SierrAzul Research Station, Napo, Ecuador. Photo by H. F. Greeney. |