Once nearly extinct, Kirtland's warbler coming off endangered list
The U.S. Fish and Wildlife Service said Tuesday that the yellow-bellied songbird has recovered but will continue to rely on habitat preservation measures for long-term survival.
It nests in the young jack pines of northern Michigan, Wisconsin and Ontario that must be logged and replanted on a regular basis to mimic wildfires that historically regenerated the forests.
Efforts also will continue to keep away brown-headed cowbirds that invade warbler nests.
After falling to 167 pairs in 1987, the population is now about 2,300 pairs.