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Last of the Canada Warblers Heading South

9-23 Canada warbler IMG_7397The Canada Warbler (or “necklaced warbler” – the male’s “necklace” is very pronounced in spring plumage) is one of the last warblers to arrive on its breeding grounds in the spring, and one of the first to depart. The last of members of this species are now leaving the cool, moist forests of boreal Canada and the Northeast for northern South America – a particularly long migration for a New World, or wood-warbler. Canada Warblers pass through rapidly, over about a three-week period, which is soon coming to an end. During migration, these warblers are known to sing frequently, and often continue singing on their wintering grounds. Populations of Canada Warblers have declined steadily over the past 30 years, likely in response to forest succession and loss of forested wetlands on their breeding grounds. (photo: fall female or 1st year male Canada Warbler — plumage is indistinguishable. Thanks to George Clark for i.d. confirmation.)

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