Category: Hirundinidae

Bird stories, the Barn Swallow

A species of marmot is native in Poland and in nearby Galicia, as well as in the lands to the east as far as central Asia. It is also very common in Eastern Siberia. There, as elsewhere, the little animal is called Bobac. Under the shoulder of the Bobac, in the flesh, may be found […]

Age-related differences in plumage characteristics of male treeswallows Tachycineta bicolor: hue and brightness signal differentaspects of individual quality

Tree Swallow (Tachycineta bicolor) Science Article 11 abstract Age-related differences in plumage characteristics of birds can be the result of differential survival of more ornamented individuals, within-individual changes in plumage attributes with age, or a combination of both. In this study, we investigated age-class related differences in plumage attributes of male tree swallows Tachycineta bicolor […]

CAUSES AND CONSEQUENCES OF TREE SWALLOW(TACHYCINETA BICOLOR) DISPERSAL IN SASKATCHEWAN

Tree Swallow (Tachycineta bicolor) Science Article 12 abstract Poor breeding success often increases dispersal, but there is conflicting evidenceabout the putative adaptive benefi ts of dispersal behavior. Thus, observational and experimentaldata were analyzed to test whether breeding success (number of young fl edging) infl uencedbreeding and natal dispersal by Tree Swallows (Tachycineta bicolor), using information […]