Nestling development and data on nests and eggs of Topaza pella (Aves, Trochilidae) in Amapá state, northern Brazil

The Crimson Topaz, Topaza pella, is the least known of the two hummingbird species of this exclusively Amazonian trochilid genus, that also includes T. pyra. Most available information on T. pella nests, young and reproductive behavior is based on anecdotal observations from Guyana in the 1930s and 1950s. Here, we provide new data on nest description, eggs and parental care of T. pella, and the growth and development of two nestlings over a 22-day period. We studied four nests in areas of dense terra firme forest in the state of Amapá, Brazil. All nests were in forked branches of shrubs over water bodies, and had a cup-like form. One nest contained two elongated white eggs, and another, two nestlings, which had their development recorded until they left the nest. (AU)

Nestling development and data on nests and eggs of Topaza pella (Aves, Trochilidae) in Amapá state, northern Brazil / Desenvolvimento de filhotes e dados de ninhos e ovos de Topaza pella (Aves, Trochilidae) no Amapá, norte do Brasil

The Crimson Topaz, Topaza pella, is the least known of the two hummingbird species of this exclusively Amazonian trochilid genus, that also includes T. pyra. Most available information on T. pella nests, young and reproductive behavior is based on anecdotal observations from Guyana in the 1930s and 1950s. Here, we provide new data on nest description, eggs and parental care of T. pella, and the growth and development of two nestlings over a 22-day period. We studied four nests in areas of dense terra firme forest in the state of Amapá, Brazil. All nests were in forked branches of shrubs over water bodies, and had a cup-like form. One nest contained two elongated white eggs, and another, two nestlings, which had their development recorded until they left the nest.(AU)

O beija-flor-brilho-de-fogo, Topaza pella é o menos conhecido das duas espécies de beija-flor desse gênero exclusivamente amazônico, que também inclui T. pyra. A maioria das informações disponíveis sobre ninhos, jovens e comportamento reprodutivo de T. pella é anedótica, a partir de observações na Guiana nas décadas de 1930 e 1950. Nós fornecemos novos dados, descrevendo o ninho, ovos, cuidado parental e o desenvolvimento de dois filhotes de T. pella ao longo de 22 dias. Estudamos quatro ninhos encontrados em áreas de floresta densa de terra firme no estado do Amapá, Brasil. Todos os ninhos estavam em galhos bifurcados, inclinados verticalmente sobre corpos dágua e apresentaram formato de cesto baixo. Em um dos ninhos registramos dois ovos alongados de cor branca e, em outro, encontramos dois filhotes, que tiveram seu desenvolvimento registrado até deixarem o ninho.(AU)