Where nest sites are limited, there may be high competition for available sites; interspecific nest usurpation has been documented in a number of passerine
The reasons appear to be related to the constant raising of maximum summer air temperatures in the Eastern Mediterranean, which affect egg thermoregulation and lead to increased egg infertility, the predation of eggs and nestlings by rats, and a possible mismatch of the species breeding period with the changing passerine
migratory flux over its colonies (also possibly attributable to climate change).
Annual data on seroprevalence in passerines
, environmental temperatures, reporting of human cases, and minimum infection rates (MIR) in vector populations are summarized in Table 2.
Our observations raise fascinating possibilities for the study of passerine
nesting behavior and we encourage further investigation among poorly-studied yet common and readily-accessible birds such as the White-rumped Shama.
garinii found in nymphs feeding on migratory passerines
in this study corresponds to [approximately equal to] 50% of that found in pheasants in the United Kingdom, where these birds are the major reservoir of this spirochete (13).
The process and causes of fledging in a cavity-nesting passerine
bird, the House Wren (Troglodytes aedon).
Raising BMR is one way many small passerines
survive and acclimatize to winter conditions in temperate zones.
Description : Brija wetland provides important resident, wintering and stopover habitats for waders, other water-birds, and small passerines
The greatest proportion - 73 per cent - of the 2,254 bird advertisements recorded globally were for exotic birds including parrots, hornbills, toucans, passerines
and humming birds," the IFAW report said.
They include houbara bustards, passerines
, flamingos, pelicans, cranes and turtle doves.
An outbreak of salmonellosis in wild passerines
caused mass mortality of Eurasian tree sparrows (Passer montanus) in Hokkaido, Japan, 2005-2006; however, the etiology was poorly understood.
a diagram which showed the evolutionary relationships of each passerine
species and their common ancestors to reconstruct where ancestral passerines
Breeding birds include Night-heron, Cotton teal, Pheasant tailed jacana, Purple Moorhen, besides some passerines
The overall nest predation rate across all species was 36% and was lowest in the five most common ground-nesting passerines
(27% across species) and highest in mallards (50%) and the four most common above-ground and shrub-nesting species (44% across species) (Fig.
Small, insectivorous passerines
pose much greater challenges for captive management, feeding, and veterinary care.