. The birds of Illinois and Wisconsin. Birds; Birds. Jan., 1909. Birds of Illinois and Wisconsin—Cory. 711. Olive-backed Thrush. (Birds N. E. 111., 1876, p. 93), but this does not necessarily indicate breeding. Injured or non-breeding birds often re- main during the summer far south of their usual habitat. It is not known to breed in northern Wisconsin, but it is not unlikely that it does so. The song is charming but not as fine or as varied as that of the Wood Thrush, which it somewhat resembles. Alma's Thrush, Hylocichla ustulata almcs Bishop, recorded from Wisconsin (Kumlien and Hollister,
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