This video from the USA is called In Search of Kirtland’s Warblers.
From BirdLife:
Conservationists “thrilled” as Kirtland’s Warbler returns to CanadaMore Than 25 percent of US Birds Need Urgent Conservation Action: here.30-11-2007
Bird Studies Canada (BirdLife’s Canadian co-Partner) has expressed delight at news that a pair of Kirtland’s Warbler Dendroica kirtlandii have bred in Canada – the first in over 60 years.
The birds were found at a Canadian Forces Base in eastern Ontario and, although eggs in the nest were unviable, the discovery has provided useful data for scientists researching the distribution of this species, listed globally as Near Threatened by BirdLife.
Kirtland’s Warbler does not normally breed outside of Michigan in the US, but this year in addition to the nest in Ontario, others were found in Wisconsin.
Extensive habitat loss across its northern breeding range saw the warbler’s population drop to fewer than 200 males in the 1970s. More recently numbers have been seen to recover: almost 1,500 singing males were recorded in Michigan in 2006.
