Right now, above parking lots, ballfields, and rooftops across the country, one of the most underrated spectacles in North American birding is happening — and almost nobody's looking up to see it.
Meet the Common Nighthawk: not a hawk at all, but a strange, brilliant little aerial insectivore that's currently in the middle of one of the great overlooked migrations on the continent.
Wait, It's Not a Hawk?
Correct. Despite the name, nighthawks aren't raptors — they're nightjars, part of the same odd, moth-like family as whip-poor-wills. With long, pointed, falcon-shaped wings, a tiny bill hiding a cavernous mouth, and a bold white slash across each wing, they're built for one thing: catching insects on the wing, mid-flight, at high speed, often right at dusk.
Their flight style is unmistakable once you know it — an erratic, zigzagging, fast-slow flap-and-glide pattern that looks almost bat-like. Combine that with their nasal, buzzy peent call, and a nighthawk overhead is one of the easier "mystery birds" to solve once you've seen your first one.
Why August Is Their Moment
Nighthawks spend the summer breeding across open country — farmland, gravel rooftops, sand dunes, prairie — and start slipping south again remarkably early. Large-scale migration typically kicks off around mid-August, builds through the last week of the month, and can continue into early September, making this the exact window to start watching.
And when they move, they move. Nighthawks are one of the longest-distance migrants of any North American landbird, flying all the way to South America for the winter. Along the way, they gather in loose, feeding flocks that can number in the dozens, hundreds, or — on an exceptional night — thousands. One night at Hawk Ridge in Duluth, Minnesota, observers counted over 27,000 nighthawks streaming south in a single evening.
You don't need a hawk-watch platform to witness it, either. Nighthawks migrate right over cities and towns, often in the hour or two before sunset, feeding on flying insects as they go. Ballfields with stadium lighting are a classic hotspot — the lights draw insects, the insects draw nighthawks, and suddenly you've got a free show above the outfield.
How to Watch for Them
- Time it right. Most large movements happen in the hour or two before dusk, though nighthawks can technically be seen at any hour of the day.
- Look for open sky, not trees. Parking lots, ball fields, river valleys, and open neighborhoods are better than dense forest.
- Scan high. Migrating nighthawks often fly well above treetop height, sometimes 200 feet up or more, gliding on raised wings between bursts of flapping.
- Listen first. That sharp peent often gives away a bird before you spot it visually.
- Watch the last week of August especially. In many regions, numbers peak right around now through early September before tapering off.
A Bird Worth Rooting For
Nighthawks have quietly become harder to find in many areas — the gravel rooftops they once nested on have largely disappeared, replaced by materials that don't suit them, and like many aerial insect-eaters, they've felt the effects of declining insect populations. That makes catching a big migratory flight even more worth carving out an evening for. It's a genuinely wild, slightly surreal experience: dozens of birds wheeling silently overhead against the last light of the day, on their way to another continent entirely.
Grab a lawn chair, pick a evening this week, and look up around sunset. You might just catch North America's most underrated migration happening right over your own neighborhood.
Caught a nighthawk flight recently? We'd love to hear how many you counted — tag us in your sighting or comment below.
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