The male Red-winged Blackbird's "conk-la-ree!" from a cattail is the sound of a Michigan marsh waking up in March — often the very first migrant song of the year. Males are glossy black with scarlet-and-yellow shoulder patches they flare like badges; females look like entirely different birds, heavily streaked brown, built for invisibility on the nest.
Red-wings breed in nearly every wet ditch, marsh, and hayfield in the state, and males defend their patch against all comers — including, famously, people who walk too close in June. By late summer they gather into massive roaming flocks with grackles and cowbirds.
Seeds and waste grain for most of the year, switching sharply to insects during breeding season — dragonflies, mayflies, and caterpillars fuel the nestlings. Big fall flocks glean harvested fields across southern Michigan.
You walked near a nest. Males aggressively defend territories in May–July and will swoop at people, dogs, and even hawks. It's bluff — keep moving and you're out of the zone in a few yards.
That's the female Red-winged Blackbird. She looks like a big sparrow — heavy brown streaking is camouflage for her low nest in the cattails.
Males arrive astonishingly early — late February to mid-March, often while marshes are still iced over — to claim territories. Females follow a few weeks later.
Roughly March to November. The heart of the season falls from May through July, and departure is usually more gradual and less noticeable than arrival.
Those are females and juveniles — heavily streaked dark brown with a pale eyebrow, often with a warm wash on the throat. Young males are blackish and blotchy with a dull orange shoulder, and take about two years to reach the adult male's glossy black and scarlet.
A cloud or a cluster. Red-winged Blackbird flocks in late fall are among the largest bird gatherings in Michigan, and the males famously return to marshes weeks ahead of the females in late February and March.
Other birds you might be looking at instead.
Pick the park — it takes less than ten seconds.
Start typing the bird's name, then pick it from the list.
Suggest a birding spot to add to the map. I'll review it before it appears.
Thanks! Your suggestion has been sent for review.
Found something wrong or out of date? Tell me what to fix — it goes straight to my inbox. (No email needed.)
Thank you — your note is on its way. I appreciate the help keeping this accurate.