Henslow's Sparrow

Ammodramus henslowii

In Canada, the Henslow's sparrow presently breeds only in Ontario, although its breeding range once extended to southwestern Quebec. In Ontario, several colonies have disappeared, and very few adults have been sighted in the last few years. The major limiting factor for the Henslow's sparrow is habitat loss. The species appears to have moved into southern Ontario initially to occupy grassland habitats created by agricultural development of forested areas. Now, open habitat is disappearing as the practice of leaving fields to lie fallow is decreasing and agriculture is becoming more intensive.