L 20-25″(51-64 cm) W 50-64″(127-163 cm).
Song or calls:
Low harsh “kak kak kak.”
Description: Sexes similar. Variable plumage with three color phases: white, gray, and black. Large, heavily built falcon. Lacks dark helmet. Gray phase has black mustache. Unlike other falcons, tail extends far past wingtips when perched.
Habitat: Found in grasslands and prairies both during migration and winter.
Where in Nebraska: Extremely rare winter visitor.
Field Notes: Largest North American falcon.
Fun Facts: The female Gyrfalcon stores prey during the breeding season withing 100 meters of the nest.