Category: South America

Mitred Parakeet (Aratinga mitrata)

[order] PSITTACIFORMES | [family] Psittacidae | [latin] Aratinga mitrata | [authority] Tschudi, 1844 | [UK] Mitred Parakeet | [FR] Conure mitree | [DE] Rotmasken-Sittich | [ES] Buhito Menor (HN) | [NL] Roodmaskeraratinga | [copyright picture] Bill King Subspecies Monotypic species Genus The parrot genus Aratinga comprises 24 species. Aratinga is a genus of American parakeets. […]

Fiery-shouldered Parakeet (Pyrrhura egregia)

[order] PSITTACIFORMES | [family] Psittacidae | [latin] Pyrrhura egregia | [authority] Sclater, 1881 | [UK] Fiery-shouldered Parakeet | [FR] Conure aile-de-feu | [DE] Feuerbug-Sittich | [ES] Cotorra Egregia | [NL] Roodschouderparkiet | [copyright picture] Tony Tilford Subspecies Monotypic species Genus The genus Pyrrhura includes a rich set of small to medium-sized species of parakeets, mostly […]

Autumn stopover ecology of the BlackpollWarbler (Dendroica striata) in thorn scrub forestof the Dominican Republic

White-faced Whitestart (Myioborus albifacies) Science Article 1 abstract We used mist-netting, color-banding, resighting, and behavioral observations to study the autumn stopoverecology of migrating Blackpoll Warblers (Dendroica striata) in coastal thorn scrub forest in the area of Cabo Rojo,Pedernales Province, Dominican Republic. Blackpoll Warblers were the most abundant migrant present in this habitatthroughout most of October […]

transoceanic migration of the blackpoll warbler:summary of scientific evidence and response tocriticisms by murray

White-faced Whitestart (Myioborus albifacies) Science Article 2 abstract The hypothesis that Blackpoll Warblers (Dendroica striata) make transoceanicflights in autumn from the northeastern U.S. and southeastern Canada to South Americahas been proposed or supported in more than 25 papers by many authors, using manytechniques.M urray (1989; unpubl.) has criticized this hypothesis, but cited only a few […]

Female Site Fidelity And Polygyny In The Blackpoll Warbler (Dendroica Striata)

White-faced Whitestart (Myioborus albifacies) Science Article 3 abstract From 1980 to 1982, 8-30% of male Blackpoll Warblers (Dendroics atriata) studied on Kent Island, New Brunswick, were bigamous each year (2 = 16.8%). I tested whether differences in the quality of the breeding situation can give rise to polygynous matings. Five territory parameters and two male […]

Demography and Ecology of Montane ForestBird Populations in the Green Mountains of Vermont

White-faced Whitestart (Myioborus albifacies) Science Article 4 abstract Bicknell’s Thrush (BITH) and Blackpoll Warbler (Dendroicastriata; BLPW) were selected as focal study species because: 1) Bicknell’s Thrush is restricted to montaneforests and Blackpoll Warbler is a near-obligate resident of this habitat in the Northeast Kent P. McFarland, Christopher C. Rimmer and James E. Goetz, Vermont Monitoring […]

Male achromatic wing colouration is related to body condition and female reproductive investment in a dichromatic species, the upland goose

Upland Goose (Chloephaga picta) Science Article 1 abstract In many bird species, achromatic plumage patch size can serve as a male status signal, but the use of variations in the achromatic colours themselves as a quality signal has only recently come into focus. In our study, we sought to determine whether achromatic plumage reflects individual […]

Species Limits In Antbirds (Thamnophilidae): The Warbling Antbird (Hypocnemis Cantator) Complex

Warbling Antbird (Hypocnemis cantator) Science Article 1 abstract Recordings examined. The following list identifies recordings used in the study by taxon, country, state or department, recording location, and recordist. Taxon codes reflect the names of current subspecies within whose range they fall. Numbers following the recordist name identify the number of cuts per recordist per […]

Nesting Records Of Five Antbird Species From The Colombian Amazon

Warbling Antbird (Hypocnemis cantator) Science Article abstract Few nests of Amazonian antbirds (Thamnophilidae and Formicariidae) have been described. Here we present nesting records for five species of antbirds found in Tinigua National Park, Colombia. A pouchshaped pensile nest of the Warbling Antbird (Hypocnemis cantator) in a treefall gap within seasonally flooded forest contained two eggs […]