Category: Thraupidae

Observations at a Paradise Tanager nest

Paradise Tanager (Tangara chilensis) Science Article 1 abstract The Paradise Tanager (Tanguru chifensis) inhabits the canopy and forest edge of tropical forests in the Amazon Basin and Guianan region of South America (Isler and Isler 1987, Ridgely and Taylor 1989). At the Tambopata Nature Reserve in southeast Peru (12’5O’S, 69’17’W) it is common in canopy […]

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

Palm Tanager (Thraupis palmarum) 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 […]

SUGAR-TASTING ABILITY AND FRUIT SELECTION IN TROPICAL FRUIT-EATING BIRDS

Palm Tanager (Thraupis palmarum) Science Article 2 abstract The sugar-tasting abilities of four species of tanagers and two species of manakins were tested. Three tanager species were able to detect differences in diets containing 8%, 10%, and 12% sugar. In pairwise choice trials, they preferred the diet highest in sugar. Neither species of manakin discriminated […]

SUGAR-TASTING ABILITY AND FRUIT SELECTION IN TROPICAL FRUIT-EATING BIRDS

Palm Tanager (Thraupis palmarum) Science Article 2 abstract The sugar-tasting abilities of four species of tanagers and two species of manakins were tested. Three tanager species were able to detect differences in diets containing 8%, 10%, and 12% sugar. In pairwise choice trials, they preferred the diet highest in sugar. Neither species of manakin discriminated […]

Observations at a Paradise Tanager nest

Paradise Tanager (Tangara chilensis) Science Article 1 abstract The Paradise Tanager (Tanguru chifensis) inhabits the canopy and forest edge of tropical forests in the Amazon Basin and Guianan region of South America (Isler and Isler 1987, Ridgely and Taylor 1989). At the Tambopata Nature Reserve in southeast Peru (12’5O’S, 69’17’W) it is common in canopy […]

BEHAVIOR OF THE GRASSLAND SPARROW AND TWO SPECIES OF SEED-FINCHES

Lesser Seed-Finch (Oryzoborus angolensis) Science Article 1 abstract The behavior of many of the predominantly granivorous neotropical bird species cOnventionally grouped under the familial heading Fringillidae in field guides is poorly known. Documenting it may help promote a better understanding of the phylogeny and Systematics of these birds and clarify the evolution and adaptive significance […]

BEHAVIOR OF THE GRASSLAND SPARROW AND TWO SPECIES OF SEED-FINCHES

Large-billed Seed-Finch (Oryzoborus crassirostris) Science Article 1 abstract The behavior of many of the predominantly granivorous neotropical bird species cOnventionally grouped under the familial heading Fringillidae in field guides is poorly known. Documenting it may help promote a better understanding of the phylogeny and Systematics of these birds and clarify the evolution and adaptive significance […]

DESCRIPTION OF A NEW SUBSPECIES OF PIRANGA HEPATICA SWAINSON.

Hepatic Tanager (Piranga flava) Science Article 1 abstract The geographic range of Piranga hepatica hepatica, as now understood, extends from Arizona to southern Mexico. Examination of a series of 115 specimens of this species in the United States National Museum, including the Biological Survey collection, reveals the existence of an additional and undescribed subspecies from […]

The nest and eggs of the Chestnut-vented Conebill Conirostrum speciosum (Temminck, 1824)

Chestnut-vented Conebill (Conirostrum speciosum) Science Article 1 abstract The genus Conirostrum (Lafresnaye & d’Orbigny, 1838) comprises nine species, all endemic to the Neotropical Region, where it is widely distributed (Meyer de Schauensee 1982)- Of the species of this genus, only C. bicolor and C. cinereum have had their nests and eggs described (Herklots 1961; Johnson […]

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

Burnished-buff Tanager (Tangara cayana) 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 […]