Kirtland’s warbler census shows once-endangered songbird continues to thrive

State and federal agencies and droves of volunteers have partnered to count Michigan’s Kirtland’s warbler population.
The agencies recently announced that surveys conducted in June show the small songbirds have continued to flourish since their October 2019 removal from the federal list of endangered species.
“The power of partnership continues to yield excellent results for the Kirtland’s warbler after coming off the endangered species list,” said U.S. Fish and Wildlife Service Regional Director Charlie Wooley. “Recovery of this beloved species required a strong, creative set of partners, and that spirit continues into the future with agencies, organizations and private entities working together locally, nationally and internationally. I’m confident this strong partnership will secure the long-term future of this bird.”
With the June survey results now tallied, the Kirtland’s warbler global population is estimated at 2,245 pairs, which is more than double the 1,000-pair recovery goal for the species – which has been exceeded over each of the past 20 years.
Researchers survey nesting areas, listening for singing males advertising and defending nesting territories. Each male found is presumed to have a mate, so the number of males also indicates the number of pairs.
Kirtland’s warblers build nests on the ground, only in young, dense stands of jack pine in Michigan, Wisconsin and Ontario. This habitat was historically created by large wildfires. Today, wildfires are suppressed, and the nesting habitat is created by harvesting mature jack pine and planting jack pine seedling in the logged areas. Read more









