Prairie Warbler Overview, All About Birds, Cornell Lab of Ornithology

The male Prairie Warbler sings two song types, which closely resemble each other but differ subtly in volume and speed. The faster "Group A" song is directed at the female, for courtship and maintenance of the pair bond. The "Group B" song is sung at territory boundaries to deter other males.

Female Prairie Warblers commonly eat the eggshells after their young hatch, consuming the shells in 15 to 90 seconds.

The Prairie Warblers living in the Florida mangroves are considered to be a separate subspecies from the more widespread migratory ones. The Florida birds are slightly larger and have larger white spots in their tails.

The oldest recorded Prairie Warbler was a male, andat least 7 years, 9 months old when he was recaptured and rereleased during banding operations in Connecticut.