Little Bustard (Tetrax tetrax) Science Article 4 abstract The main summer populations of Little Bustard in Galicia occur in the districts of A Limia,Ourense (Villarino et al., 2002) and Terracha, Lugo (Barcena et al., 1987). These two populations are the only ones on the Iberian Peninsula within the Eurosiberian region. Data on these marginal populations […]
Category: Gruiformes
Breeding habitat modelling of the Little Bustard Tetrax tetrax in the site of community importance of Cabrela (Portugal)
Little Bustard (Tetrax tetrax) Science Article 3 abstract Aims: The Little Bustard often occurs in fragmented open landscapes in southwest Portugal, where agricultural fields are spaced with forest stands and shrublands. In these areas species abundances and distribution patterns are poorly known, and there is almost no information about the effects of human activities on […]
Notas acerca del forrajeo de Aramus guarauna (Avis: Aramidae) en un estero de aguas salobres
Limpkin (Aramus guarauna) Science Article 2 abstract Some aspects regarding the feeding behaviour of the limpkin (Aramus guarauna) are analyzed. Scientific literature point out that this species mainly feeds on Pomacea spp. (Mollusca: Gastropoda: Ampullariidae). The authors found it feeding with statistical significance preference (G= 17.79, p < 0.01) on Aplexa impluviata laeta (Gastropoda: Basommatophora: […]
Snail Kite Kleptoparasitism of Limpkins
Limpkin (Aramus guarauna) Science Article 1 abstract Kleptoparasitism is defined as the stealing of food from an individual by another individual (Rothschild and Clay 1952). Interspecific kleptoparasitism occurs in many animal groups but is particularly widespread among birds, especially when individuals of different species regularly congregate at feeding areas (Brockmana nd Barnard 1979). BRUCE W. […]
Habitat use and mating system of the houbara bustard ( Chlamydotis undulata undulata ) in a semi-desertic area of North Africa: implications for conservation
Houbara Bustard (Chlamydotis undulata) Science Article 2 abstract Studies of the movements and home-ranges of houbara bustards (Chlamydotis undulata undulata) showed sexual and seasonal differences in the use of space, with a polygynous mating system similar to an
Population estimates of Houbara Bustard Chlamydotis undulata macqueenii in Punjab, Pakistan, november 1999
Houbara Bustard (Chlamydotis undulata) Science Article 4 abstract Houbara Bustard Chlamydotis undulata macqueenii is reportedly declining rapidly in all the range states and its population believed to be much less now than some 10-12 years ago (Goriup, 1997). Rough estimates of the declining rates from causal observations in different parts of Balochistan indicate a declining […]
Breeding Habitat Selection by the Houbara Bustard Chlamydotis[undulata] macqueenii in Mori, Xinjiang, China
Houbara Bustard (Chlamydotis undulata) Science Article 1 abstract In order to define the features that determine breeding habitat suitability forthe Houbara Bustard (Chlamydotis undulata macqueenii), a study of nest-site selection by this species was carriedout in Mori, Xinjiang, China during the breeding seasons in April-June 1998-2000. Most habitats chosenfor nest sites were open areas with […]
Human activities affect the potential distribution of the Houbara Bustard Chlamydotis undulata undulata
Houbara Bustard (Chlamydotis undulata) Science Article 3 abstract Human activities have been reported to impinge on the distribution of the endangered Houbara Bustard Chlamydotis undulata undulata. The present study intends to investigate spatial relationships between Bustard and pastoral distribution in order to identify avoidance patterns and potential exclusions of the species from still-suitable grounds.The study […]
THE GRAY-BREASTED CRAKE (LATERALLUS EXILIS) IN COSTA RICA: VOCALIZATIONS, DISTRIBUTION, ANDINTERACTIONS WITH WHITE-THROATED CRAKES (L. ALBIGULARIS)
Grey-breasted Crake (Laterallus exilis) Science Article 1 abstract We provide the first documentation ofLaterallus exilis in Costa Rica. Because of its secretive nature, little is known about this species. We describe the coloration of itssoft parts and contrast its vocalizations with those of L. albigularis, a common and sympatric congener. In Costa Rica, L. exilis […]
Distribution, size and recent trends of the Great Bustard Otis tarda population in Madrid region, Spain
Great Bustard (Otis tarda) Science Article 2 abstract Between 1998 and 2002 we carried out five spring censuses of the Great Bustard population of Madrid region. The average count was 1148 individuals (337 males and 811 females) distributed in 13 leks. The species