Species Index: Uncategorized

Lawrence’s Warbler (wwpp), with two recessive genes for each trait, can not be accounted for by any first generation hybrid pairing. Rather, it has to be the result of a pairing between either two Brewster’s (considered exceedingly rare), or a pairing between a Brewster’s and a heterozygous Golden-winged or a heterozygous Blue-winged. Continue reading →