Since 1899 ringing (or banding) remained the most important source of information about migration routes, stopover sites and wintering grounds for birds that are too small to carry satellite-based tracking systems. Despite the large quantity of migrating birds ringed in their breeding areas in Europe, the number of ring recoveries from sub-Saharan Africa is very low and therefore the whereabout...

Long-distance migration is a behavior that is exhibited by many animal groups. The evolution of novel migration routes can play an important role in range expansions, ecological interactions, and speciation. New migration routes may evolve in response to selection in favor of reducing distance between breeding and wintering areas, or avoiding navigational barriers. Many migratory changes are li...

Many of the ideas and controversies regarding the origin, evolution, and significance of avian migration derive from investigations of Old World migrants wintering in the European subtropics and central African Tropics. One of the critically important studies in the development of these ideas was the work by Morel & Bourlière (1962) on migratory bird ecology in Senegal, from which they conclude...

EFFECTS OF PRESCRIBED FIRE ON WINTERING, BARK-FORAGING BIRDS IN NORTHERN ARIZONA

The Purple Finch (Carpodacus purpureus (Gmelin)) is a migratory fringillid breeding across the northern coniferous forests of North America. Although irruptions occur, little information has been gathered on the movements of individual birds. We used the 19,893 re-encounters of banded birds in the Bird Banding Laboratory database to identify patterns of movements and to examine wintering and br...

The unusually high quality of census data for large waterbirds in Europe facilitates the study of how population change varies across a broad geographical range and relates to global change. The wintering population of the greylag goose Anser anser in the Atlantic flyway spanning between Sweden and Spain has increased from 120 000 to 610 000 individuals over the past three decades, and expanded...

there are 61 species in 14 families of fish-eating birds in iran. the fish-eating birds of the north of iran belong to 41 species in 10 families which include 67.2 percent of total fish eating bird species and 71% of fish-eating bird’s family of iran. resident birds constitute 13% of the fisheating birds of the caspian sea coasts and the rest are migratory in autumn and winter. there exist 3 ...