Yellow-rumped Warblers (Setophaga coronata) Sipping Sap from Sapsucker Wells

The Yellow-rumped Warbler (Setophaga coronata) is one of the most ecologically generalized warblers. It feeds primarily on invertebrates, but often switches to fruit during winter, utilizing a wide array foraging maneuvers. also uses variety substrates. Reports these warblers taking sap from sapsucker wells are rare. Here we report 3 instances sapsucking Warblers Arkansas. All three observations were immediately preceded by extreme cold weather with snow or ice precipitation. We hypothesize that opportunistic holes may be another strategy employed species meet its nutritional requirements harsh winters, when insects scarce.