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Birders trained to ID birds by their plumage are typically mystified by their first hawk-watching experience—from a distance, raptors may be near impossible to tell apart. Focus onÌýthe traits youÌýcanÌýmake out: size, shape, overall color or tone, and the manner and cadence of the bird’s wing beats.Ìý

My advice: Don’t be intimidated, but don’t be dismissive either. If you want to play in the hawkwatching arena, you’re going to have to rethink your concept of a field mark.ÌýDistant IDs aren’t made instantly—they’re built, by piecing together multiple clues that favor one species over another.

Size and Shape

Most birds of prey fall into four major categories. (Northern Harrier, Osprey, and kites are a few exceptions.)ÌýThese are the core attributes for each:

• Buteos areÌýthe large, broad-winged, short-tailed lugsÌýwith spare and labored wing beats.
• Accipiters areÌýsmall, narrow-tailed forest dwellers with short, rapid, bursting flaps, punctuated by a glide.
• Falcons are slender- and pointy-winged speedsters with steadier wing flaps.
• Big Black Birds (eagles and vultures) are the super-size, darker-plumed titans that make spare use of their wings.

Complexion

Once you've sorted your groups, it's time to narrow down the candidate species. LookÌýfor specific features—though fine distinctions in plumage might still be hard to pin down. For instance, the signature double ‘stache on an American Kestrel’s face may not be so obvious, so rely on its overallÌýpaleness to help distinguish it from theÌýslightly larger and darker female and juvenile Merlin.

Motion

Manner of flightÌýcan also be a defining feature. The American Kestrel’s flight is batty and flat, for example, whileÌýthe Merlin’s wing beats are fast, powerful, and piston-like. Kestrels float when they glide; the heavier Merlins sink.ÌýPeregrine Falcons, on the other hand, haveÌýshallow, elastic wing beats—you can practically see the motion rippling down the falcon’s long and tapered wings.Ìý

As the bird approaches, make sure to test your hypothesis; other clues will become more obvious as the distance closes. And don't worry, even the experts get fooled. It’s what keeps them coming back, season after season.

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