Ten species of digeneans were found in a survey of six species of terrestrial birds associated with woodland and urban habitats of north-western Poland carried out in 2006–2009: Leucochloridium paradoxum Carus, 1835 (Leucochloridiidae) from the Cyanistes caeruleus (L.) and the Parus major L. (Paridae); Leuchochloridium perturbatum Pojmańska, 1968 (Leucochloridiidae) from the Turdus merula L., (...

Food-storing birds retrieve hoarded food by remembering the locations of large numbers of spatially dispersed caches. The basic patterns of spatial orientation in these animals have been established in research on two major groups of food-storing birds, chickadees and tits (Paridae), and jays and nutcrackers (Corvidae). Experiments using displacement of landmark arrays show that food-storing bi...

Seven new species of intracutaneous parasites of the subfamily Harpirhynchinae Dubinin (Acariformes: Cheyletoidea: Harpirhynchidae) are described: Anharpyrhynchus elizae sp. nov. from Cyanocitta cristata (type host), Cyanocitta stelleri (Passeriformes: Corvidae), and Colaptes auratus (Piciformes: Picidae) from the USA; Anharpyrhynchus apodus sp. nov. from Lichmera indistincta (type host) and Ph...

Birds show interspecific variation both in the size of the fields of individual eyes and in the ways that these fields are brought together to produce the total visual field. Variation is found in the dimensions of all main parameters: binocular region, cyclopean field and blind areas. There is a phylogenetic signal with respect to maximum width of the binocular field in that passerine species ...

Eurasian magpie (Pica pica) is a widely distributed, common species of the Corvidae family. Since magpies have lived close to humans for centuries, we much information about species. However, there are few data morphological and dietary differences between sexes, primarily due their monomorphic omnivorous, opportunistic characteristics. The aim study was analyse sexual in characteristics, simul...

Landfills have the advantage of meeting energy needs birds quickly. They offer easy access to food and widely available throughout year. In this study, were counted using observation points on an open landfill in restored Souk-Ahras region (north-eastern Algeria) for one year from July 2013 April 2014. Seventeen species (17) bird belonging eleven (11) families found: Ciconidae, Corvidae, Accipi...