HABITAT: Neotropical migrant bird most commonly found in the Eastern U.S. and
Southern Canada during the summer breeding season. Can be found wintering
in Central America.
Spring migrational paths: These birds move north roughly following the 1.7°C
isotherm (avg nightly temp.), following the flowering-blooming and reproduction
season, since this is just above freezing they are pushing the limit as far as
being able to find insects and flowering plants that don’t thrive at below-freezing
temperatures.
Autumn migrational routes: many gather in the Southern U.S. in mid-September
before flying across the Gulf; some take an overland route through Mexico.