• Baltimore Orioles depart for Central and South America this month. Put out halved oranges to feed them on their way out.
• Common Garter Snake can bear dozens of live young in late summer/early fall.
• Bats are busy feeding, building fat for hibernation and migration.
• Fall migration peaks for warblers.
• Monarch migration starts.
• Peak of Blue-winged Teal migration.
• Hummingbird numbers peak around Labor Day, then start to dwindle; huge numbers along Texas coast. Follow their migration path here.
• First flickers and kinglets can appear by the end of this month - they love suet.