Vol. 43, No. 6
Wayne R. Petersen
The thin, sharply pointed and slightly downcurved bill, combined with the slender legs and overall slim shape of this month’s puzzler all point to a warbler. The single obvious wing bar and heavily streaked underparts offer useful information about its specific identity. For many warblers, the presence or absence of wing bars, along with the presence or absence of streaks on the underparts, can place an unfamiliar warbler into one or another smaller group. Once this easy first cut is made, additional subtle features can eventually lead to identification of the species.