Definition:
(adjective) Describes birds that are principally active during the day with all major life activities, including courtship, nesting, feeding, preening and other behaviors. Most species of birds, including songbirds, hummingbirds, waterfowl and raptors other than owls are considered diurnal. Diurnal birds roost and sleep at night and become active again when the sun rises.
Pronunciation:
die-URN-all
