An effective way to understand the genomics of divergence in non-model organisms is to use the transcriptome to identify genes associated with divergence. We examine the transcriptome of the song sparrow (Melospiza melodia) and contrast it with the avian models zebra finch (Taeniopygia guttata) and chicken (Gallus gallus). We aimed to (i) obtain a functional annotation of a substantial portion ...

House sparrow Passer domesticus belongs to Passeriformes order and Passeridae Family. It has a worldwide distribution living in all continents and many of oceanic Islands. Some of the ecologists believe that this bird is a symbiotic species with human, hence recognizing and identified as a bird species depended on human environments. A lack of holes suitable for nest sites on modern or renovate...

Skeletal hyperossification follows the injection of estrogen into mice1 and pigeons.5 In the female sparrow similar hyperossification occurs normally during the egg-laying season or if the ovary is stimulated to full activity by gonadotropic hormones during the non-breeding season.2 Attempts to duplicate this by the injection of estrogens have failed.2 Observations on chickens3 7 and on ducks4 ...