Tag: all of Falco

Nest defence by Lapwings : observations on natural behaviour and an experiment.

Peregrine Falcon (Falco peregrinus) Science Article 6 abstract Lapwings Vanellus vanellus are ground-nesting waders and they protect their nests by aggressively attacking predators near their nests . We investigated the response of parents to natural predators and a dummy Hooded Crow Corvus [corone] cornix during the incubation period. First, we investigated whether the presumed value […]

Predator avoidance behaviour of a solitary Willet attacked by a Peregrine Falcon

Peregrine Falcon (Falco peregrinus) Science Article 13 abstract During the non-breeding season, Willets Catoptrophorussemipalmatusu se a variety of tacticst o avoid predatorsa ndhave beenr eportedt o take flight, submergeth emselvesinwater, and hide in or near marsh vegetation JOSEPH B. BUCHANAN, Bulletin 104 August 2004 Download article download full text (pdf)

Aplomado falcon steals prey from little blue heron

Aplomado Falcon (Falco femoralis) Science Article 5 abstract A juvenile male Aplomado Falcon (Falcofemoralis) was observed to steal crayfish(Cambarus diogenes) from Little Blue Herons (Egretta caerulea). Crayfish are not known tobe a common prey item of the Aplomado Falcon. To our knowledge this is the first instanceof piracy reported for this falcon. Falcons of the […]

Antibody-mediated immunotoxicity in American Kestrels (Falco sparverius) exposed to polychlorinated biphenyls.

American Kestrel (Falco sparverius) Science Article 23 abstract Antibody-mediated immune function in adult and recently fledged (30 to 33 d old) American kestrels (Falco sparverius) was examined in birds exposed directly, or only in ovo, to polychlorinated biphenyls (PCBs). In 1998, 9 mature male and 9 female kestrels were fed PCBs, whereas 9 females and […]

Saker Falcon (Falco cherrug) in Kyrgistan

Saker Falcon (Falco cherrug) Science Article 1 abstract Saker falcons occur throughout Kyrgistan territory both onmigration and during the breeding season. In autumn most passage birdsmigrate along the outer ranges of the mountains on the level of the middleparts of macroslopes and valleys of northern Tyan San and Issikuldepression. Spring migration goes along the same […]

Insects inhabiting Saker (Falco cherrug) nestsin Hungary

Saker Falcon (Falco cherrug) Science Article 2 abstract This study describes the species compositionof insects reared from larvalassemblages collected from Saker nests.Eight coleopteran and one dipteranspecies had been reared, none of whichappear to be specific to raptors’s nestsas a habitat. They are either characteristicto carcasses, or known to occur inmanure, or commensals living in a […]

International Action Planfor the Saker Falcon

Saker Falcon (Falco cherrug) Science Article 3 abstract The Saker Falco cherrug qualifies as Globally Endangered because it has undergone a very rapidpopulation decline, particularly on the central Asian breeding grounds, owing to inadequatelycontrolled capture for the falconry trade (BirdLife International 2006). It is also Endangered inEurope due to large declines and its very small […]

Paternity assurance in two species of colonially breedingfalcon: the kestrel Falco tinnunculus and the red-footedfalcon Falco vespertinus

Red-footed Falcon (Falco vespertinus) Science Article 1 abstract Mate-guarding and frequent within-pair copulations are the two main paternityguards of male birds. Some species of birds of prey depend on large foraging areas due tothe availability and dispersion of their food, and males supply their females with food frommating until early chick rearing. Furthermore, birds of […]