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Category: Thraupidae

The nest of the gold-ringed tanager (bangsia aureocincta), a colombian endemic

Gold-ringed Tanager (Bangsia aureocincta) Science Article 1 abstract We present the first nest description for the Gold-ringed Tanager (Bangsia aureocincta) and include notes on parental care. The nest is a large domed ball constructed of moss, whereas the nest lining is constructed of rootlets. We observed three adults attending the nest, the first evidence of […]

THE BREEDING CYCLE OF THE YELLOW-BELLIED SEEDEATER IN PANAMA

Yellow-bellied Seedeater (Sporophila nigricollis) Science Article 1 abstract This report on the Yellow-bellied Seedeater (Sporophila nigricollis) is part of a fiveyearstudy of the life histories of some common tropical birds of the Panama CanalZone. The species is widely distributed in the tropics and occurs in a variety of habitatsover a great range of altitude. On […]

A partly chestnut specimen of Variable Seedeater.

Wing-barred Seedeater (Sporophila americana) Science Article 2 abstract Navy pipeline near Gamboa, Panama Canal Zone, Horace Loftin and I collected an adult male Variable Seedeater (Sporophila aurita) with a considerable amount of chestnut in the plumage. There is a faint chestnut malar stripe and a narrow transverse band of chestnut across the throat. Storrs L. […]

When black plus white equals gray: the nature of variation in the Variable Seedeater complex (Emberizinae: Sporophila)

Wing-barred Seedeater (Sporophila americana) Science Article 1 abstract The degree of relationship between the Variable (Sporophila aurita) and Wing-barred (S. americana) Seedeaters has been debated for over 80 years. The discovery of a zone of hybridization between the former and the Gray Seedeater (S. intermedia), not previously considered to be closely related because of its […]

Ecological relationships between feather mites (Acari) and wild birds ofEmberizidae (Aves) in a fragment of Atlantic Forest in northeastern Brazil

White-lined Tanager (Tachyphonus rufus) Science Article 1 abstract The objective of this study was to investigate feather mites on birds of the Family Emberizidae, tocollect data on the ecological ectoparasite-host relationship and infestation level. A sum of 94 birds of 9 specieswas captured at the Refugio Ecologico Charles Darwin, Igarassu, Pernambuco, Brazil, from August 1996 […]

RAPTORS AND ‘CAMPO-CERRADO’ BIRD MIXED FLOCKLED BY Cypsnagra hirundinacea (Emberizidae:Thraupinae).

White-rumped Tanager (Cypsnagra hirundinacea) Science Article 1 abstract Bird mixed flocks including Cypsnagra hirundinacea and Neothraupis fasciata as species with sentinelswere studied in ‘campo-cerrado’ in order to investigate the possible relationship between alertnessand the mixed flock leadership. This study was conducted from March to September 1996 and mixedflocks were observed on average for 2:30h. The […]

AN OBSERVATION OF A SUMMER TANAGER ATTEMPTING TO EAT AN ANOLIS LIZARD

Summer Tanager (Piranga rubra) Science Article 2 abstract A Summer Tanager (Piranga rubra) was observed attempting to eat an anole (Anolis carolinensis) at a migratory stopover site. The event may reflect the importance ofbehavioral plasticity during migration, but might also be the result of a simple stimulus response mechanism. DANIEL FROEHLICH, J. Field Ornithol., 66(4):501-502, […]

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