Category: Hirundinidae


Tree Swallow (Tachycineta bicolor) Science Article 15 abstract A frequently hypothesized but poorly studied cost of multiple mating in birds is thatexposure to pathogenic sexually transmitted microbes (STM’s) can lower reproductive success.Conversely, female birds may benefit from high frequencies of copulation and multiple copulationpartners if they receive cloacal inoculations of beneficial STM’s that can either […]

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 […]