Northern Waterthrush

Northern Waterthrush has an extensive breeding range from the US northern tier all across Canada and including most of Alaska.  The similar Louisiana Waterthrush has a more limited range comprising the eastern US. Four helpful ways to tell them apart, besides their songs, are: Northern has the less extensive white supercilium, Northern has a yellowish tinge to the breast that Louisiana lacks, Northern has streaking extending to the throat which tends to be unmarked in Louisiana, and Northern has less of a predilection for rapidly rushing water.