Saffron Finch (Sicalis flaveola) Science Article 1 abstract A change in bird density within a captive flock of Sicalis flaveola pelzeni (Sclater, 1872) affected thedecision to join a group. Ruling out inter-individual differences and maintaining constant the size of a foodpatch, birds were found to fly more often to the food source and spend a […]
NOTES ON THE LIFE HISTORY OF THE RUSTY-MARGINED FLYCATCHER IN SURINAM
Rusty-margined Flycatcher (Myiozetetes cayanensis) Science Article 2 abstract IN Surinam the Rusty-margined Flycatcher (Myiozetetes cayane.ensis) is one of the commonest birds. For a general description, its habitat and breeding habits the reader is referred to my ‘Birds of Surinam’ (Haver- Schmidt, 1968). Two life-histories have been published, a short one by Skutch (1960) from Barro […]
Nesting of the Mangrove Swallow (Tachycineta albilinea) in nests of the Rusty-margined (Myozetetes cayanensis) and Social (M. similis) Flycatchers
Rusty-margined Flycatcher (Myiozetetes cayanensis) Science Article 1 abstract In March-May 1999, I conducted observations on breeding ecology of Rusty-margined (Myozetetes cayanensis) and Social (M. similis) flycatchers along the coast of the Barro Colorado Island located on an artificial lake Gatun. The lake was created during the building of the Panama Canal. The island, a naturereserve, […]
Registro da Ocorrencia de Siricora-Mirim (Laterallus viridis) em Dourados, MS
Russet-crowned Crake (Anurolimnas viridis) Science Article 1 abstract Um dos grupos animais mais bem estudados no Brasil e o dasaves (Primack & Rodrigues, 2002), porem em Mato Grosso doSul os estudos ornitologicos ainda sao escassos,principalmente na Regiao Sul do Estado; assim, e importantenotificar a ocorrencia de novas aves e expansoes na distribuicaode algumas especies. Claudenice […]
PARENTAL CARE AND NESTING IN THE RUFOUS-THROATED ANTBIRD, GYMNOPZTHYS RUFIGULA, IN AMAPA, BRAZIL
Rufous-throated Antbird (Gymnopithys rufigula) Science Article 1 abstract On 26 April 1968, while studying ant-following birds at Serra do Navio (0′ 55′ N, 52′ 01′ W), Amapa, Brazil, I found a nest of a Rufous-throated Antbird (Gymnopithys rufigula) with two nestlings about 2 or 3 days old. YOSHIKA ONIKI, Wilson Bull. Vol. 83, No. 4 […]
OBSERVATIONS OF SOME UNUSUAL RAINFORESTAND MARSH BIRDS IN SOUTHEASTERN PERU
Rufous-tailed Xenops (Xenops milleri) Science Article 1 abstract This paper provides information on the behavior, distribution, and taxonomy of 36 species of rainforest and marsh birds found in the tropical lowlands of southeastern Peru. Most species discussed are little-known forest residents, but some are widespread and common in other regions, occurring in Peru only as […]
Functional significance of nest size variation in the Rufous Bush Robin Cercotrichas galactotes.
Rufous-tailed Scrub Robin (Erythropygia galactotes) Science Article 1 abstract Avian nest building behaviour has generally been viewed as a result of natural selection, and several functional hypotheses have been suggested to explain variance in nest size. These include responses to predation and parasitism risk, and aspects of nest stability, clutch size, insulation and sexual display. […]
NESTING OF THE RUFOUS-TAILED FLATBILL(TYRANNIDae), IN FRENCH GUIANA
Rufous-tailed Flatbill (Ramphotrigon ruficauda) Science Article 1 abstract In French Guiana, the nesting of the Rufous-tailed Flatbill (Raraphotrigon ruficauda) occurs during the main dry season from mid-July to the end of October. This rain forest inhabitant nests exclusively at the bottom of cavities in the end of broken trunks orlarge fallen branches near the ground. […]
The Rufous-Rumped Antwren (Terenura callinota) in Costa Rica
Rufous-rumped Antwren (Terenura callinota) Science Article 1 abstract Rufous-rumped Antwren (Terenura callinota) has a wide distribution from southern Middle America to Guyana and Peru, but is known chiefly from a handful of specimens from widely scattered localities. GARY STILES, Wilson Bulletin: Vol. 95, No. 3 Download article download full text (pdf)
THE RUFOUS-COLLARED SPARROW AS A HOST OF THE SHINY COWBIRD
Rufous-collared Sparrow (Zonotrichia capensis) Science Article 1 abstract The Rufous-collared Sparrow or Chingolo (Zonotrichia cupensis) is one of the main hosts of the Shiny Cowbird (Molothrus bonariensis) through most of their overlapping range in South America. The most recent study on the interaction between these species was carried out by King (1973) in Horco Molle, […]