Russell Huffman on Instagram: "HUMMINGBIRDS IN FORCE! Things to Know About Fall Bird Migration Hummingbirds! Timing: Hummingbirds begin their fall migration at different times depending on the species and local conditions, but early August through late September is the key period. Species: Common species migrating include Ruby-throated, Rufous, Black-chinned, Broad-tailed, and Calliope hummingbirds. Routes: Ruby-throated hummingbirds migrate to southern Mexico, Central America, and Florida. Rufo