ALL 35 SUBSPECIES LOOK VERY SIMILAR, THEY ONLY DIFFER IN MALE WHEN THEY ARE IN BREEDING PEN.
MEET THE YELLOW WARBLER The Yellow Warbler (Setophaga petechia, formerly Dendroica petechia) is a New World species of warbler.
Females are a bit duller, more so on the head.
There are three main groups of Yellow Warrillers divided into 35 subspecies, many of which are defined by the male’s head color in the breeding season.
These thirds breed in temperate North America as far south as central Mexico, then migrate south to Central and South America to overwinter.
American yellow guerrillas have shrubby habitats near water, most often foraging in fairly low-lying shrubs to the ground.
The American yellow warbler’s breeding season begins in May and June, where they build a cup-shaped nest made of twigs and grasses.
Although some populations are in decline due to haƄitat destruction, excessive use of herbicides and pesticides, as well as grazing, this species is generally common.