Entity

Time filter

Source Type

Bogotá, Colombia

Caranton-Ayala D.,Fundacion ProAves | Caranton-Ayala D.,University of Tolima | Certuche-Cubillos K.,University of Tolima
Ornitologia Colombiana | Year: 2010

We describe the Urrao Antpitta (Grallariidae: Grallaria urraoensis), a new species of suboscine passerine endemic to high Andean forests below Páramo de Frontino, in the northern sector of the Western Andes of Colombia. The new species is similar to the Brown-banded Antpitta (Grallaria milleri) from the Central Andes, but differs from it vocally and in its slightly larger size, lack of pectoral band, duller brown-olive coloration in the upperparts, uniform light gray underparts, and whitish lores. The new species occurs in the undergrowth of primary and secondary cloud forests dominated by Chusquea bamboo at elevations between 2500-3200 m at the type locality. We present notes on the ecology, distribution, behavior, reproductive biology, vocalizations, and conservation of the new species. The montane forests in the northern sector of the Western Andes to which the Urrao Antpitta is endemic are threatened by deforestation, fragmentation, and mining. These factors, in combination with the restricted geographic and ecological distribution of the new species, make it an important priority for conservation action. Source


Donegan T.M.,Fundacion ProAves | Avendano J.E.,University of Los Andes, Colombia
Bulletin of the British Ornithologists' Club | Year: 2010

A new subspecies of Anisognathus lacrymosus is described from Serranía de los Yariguíes in the East Andes of Colombia. The new taxon differs in a combination of plumage characters, including a darker back and crown, from the geographically proximate subspecies A.l. tamae, A.l. pallididorsalis and A.l. olivaceiceps of the East and Central Andes, as well as, on average, having a longer tail than other East Andes populations. The darker plumage of the new subspecies resembles that of A.l. intensus of the West Andes (which also occurs in more humid habitats), presenting a 'leap-frog' pattern of geographic variation. The new subspecies is restricted to páramo and stunted Andean ridgetop habitats, apparently being endemic to the Yariguíes massif. Analyses of biometrics, plumage and voice support species rank for A. (lacrymosus) melanogenys of the Santa Marta Mountains, as previously suggested by some authors. Subspecies A.l. melanops, A.l. palldidorsalis, A.l. yariguierum and A.l. lacrymosus represent phylogenetic species based on plumage, but a greater vocal sample is required to further analyse the rank of these and other populations. Source


Donegan T.M.,Fundacion ProAves | Avendano J.E.,Industrial University of Santander | Avendano J.E.,University of Los Andes, Colombia | Briceno-L. E.R.,Corporacion Autonoma Regional | And 7 more authors.
Cotinga | Year: 2010

We present a list of bird species recorded in Serranía de los Yariguíes, an isolated spur of the East Andes in Santander department, Colombia, and the surrounding region. Details of specific record localities, elevational range and documentation are included for 583 bird species, together with a brief discussion of the avifauna of the region and methods used to collect these data. Thirteen of the species recorded are considered threatened (Northern Helmeted Curassow Pauxi pauxi (EN), Blue-billed Curassow Crax alberti (CR), Gorgeted Wood Quail Odontophorus strophium (EN), Rusty-faced Parrot Hapalopsittaca amazonina (VU), Chestnut-bellied Hummingbird Amazilia castaneiventris (EN), Black Inca Coeligena prunellei (VU), White-mantled Barbet Capito hypoleucus (EN), Upper Magdalena Tapaculo Scytalopus rodriguezi (CR), Recurve-billed Bushbird Clyctotantes alixii (EN), Niceforo's Wren Thryothorus nicefori (EN), Cerulean Warbler Dendroica cerulea (VU), Turquoise Dacnis Dacnis hartlaubi (VU) and Colombian Mountain Grackle Macroagelaius subalaris (EN)) and several involve recently-described subspecies endemic to the massif. Source


Freeman B.G.,Cornell University | Class A.M.,Virginia Polytechnic Institute and State University | Olaciregui C.A.,Fundacion ProAves | Botero-Delgadillo E.,SELVA Investigacion Para la Conservacion en El Neotropico
Ornitologia Colombiana | Year: 2012

We present the first detailed descriptions of the breeding biology of the Blue-naped Chlorophonia (Fringillidae; Chloropho-nia cyanea). In the Santa Marta Mountains, the Blue-naped Chlorophonia builds domed nests on vegetated roadbanks or roadside cliffs. They generally used existing vegetation to form the dome; in one case we inferred that a pair actively exca-vated a nest. This species lays a clutch of three eggs, white with reddish-brown speckling. The incubation period is 18-20 days, while the nestling period lasts 20-21 days. Both adults provision the nestlings equally, feeding regurgitated fruit in a stereotyped pattern, with an overall feeding rate of 3.5 feeding trips/hr. The main breeding season of the Blue-naped Chlo-rophonia in the Santa Marta Mountains is February to May. Source


We made descriptions on the nesting of the Strong-billed Woodcreeper (Xiphocolaptes promeropirhynchus) and the Black-banded Woodcreeper (Dendrocolaptes picumnus) from observations in nest boxes at the Santa Marta Mountains, Colombia. Both species lined their cavities with dry leaves or flakes of bark, clutch sizes were of two or three eggs for Xiphocolaptes promeropirhynchus and just one egg for Dendrocolaptes picumnus, and chicks were similar to other woodcreepers' chicks. Although nest boxes could be useful for obtaining information of cavity nesters, information on natural nests is required to validate our data. Source

Discover hidden collaborations