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Category: Hirundinidae

Tree Swallows (Tachycineta bicolor) are breeding earlier at Creamer’s FieldMigratory Waterfowl Refuge, Fairbanks, AK

Tree Swallow (Tachycineta bicolor) Science Article 4 abstract We examined the average annual lay, hatch, and fledge dates of tree swallows(Tachycineta bicolor) breeding in Creamer’s Field Migratory Waterfowl Refuge inFairbanks, AK from 2000 through 2008. From 2000 to 2008, lay and hatch dateexhibited a significant negative relationship, indicating that the timing of swallowreproduction has advanced […]

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 […]

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