Host: Cardellina pusilla (Wilson's Warbler)
Host: Geothlypis tolmiei (MacGillivray's Warbler)
Host: Geothlypis trichas (Common Yellowthroat)
Host: Oreothlypis celata (Orange-crowned Warbler)
Host: Setophaga coronata (Yellow-rumped Warbler)
Host: Setophaga fusca (Blackburnian Warbler)
Host: Setophaga nigrescens (Black-throated Gray Warbler)
Host: Setophaga petechia (Yellow Warbler)