A checklist of birds that you may find in Frick Park, P.A. developed by the Three Rivers Birding Club of Pittsburgh.
The Blue-winged Warbler (Vermivora cyanoptera) is a fairly common New World warbler, 11.5 cm (4.5 in) long and weighing 8.5 g (0.30 oz). It breeds in eastern North America in southern Ontario and the eastern USA. Its range is extending northwards, where it is replacing the very closely related Golden-winged Warbler, Vermivora chrysoptera.
The Golden-winged Warbler (Vermivora chrysoptera) is a New World warbler. It breeds in southeastern and south-central Canada and the Appalachian Mountains northeastern to north-central USA. The majority (~70%) of the global population breeds in Wisconsin, Minnesota, and Manitoba. Golden-winged Warbler populations are slowly expanding northwards, but are generally declining ...more ↓