The Bay-Breasted Warbler that I prepared did not have the bold coloring of the one depicted here. It was much more pale by comparison. It was either a breeding female, or a non-breeding male, but I don't remember what was eventually ascertained regardings its gender. Bay-Breasted Warblers are in the genus Dendroica and in the family Parulidae with most other wood warblers. Many warblers are coming through the Chicago area right now. Unfortunately, I only see the ones that won't be making it through, but I'm still astounded by the variety of these little insectivores.