At first glance, raptors may appear to be very similar. To demonstrate just how diverse this family is, I've chosen a representative from each of the subfamilies of Accipitridae. A very special "thank you" to Gareth Monger, who created the following visual. All raptors are to scale, although some of them may be skewed due to odd angles.
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1. Bearded vulture (subfamily Gypaetinae) - Also known as the lammergeyer, it feeds on marrow by dropping bones from great heights. It also uses this technique to feed on tortoises.
2. Snail kite (subfamily Milvinae) - The long upper jaw of this raptor allows it to feed almost exclusively on snails, though it will also eat crustaceans and fish as well.
3. Dark chanting-goshawk (subfamily Melieraxinae) - Couldn't find anything particularly unusual about this species. Sorry, folks.
4. Harris hawk (subfamily Buteoninae) - The only raptor to actively hunt in familiar packs.
5. Pearl kite (subfamily Elaninae) - The second-smallest raptor in the world. Preys mainly on Anolis sp. lizards.
6. Black baza (subfamily Perninae) - Captures insects on the wing, or plucks them off of leaves. It has also been observed eating palm fruit.
7. Philippine eagle (subfamily Circaetinae) - Also known as the monkey-eating eagle. It also preys on anything from monitor lizards to hornbills.
8. Steller's sea eagle (subfamily Haliaeetinae) - Feeds mainly on fish, though also hunts waterfowl, gulls, herons, and cranes.
9. African harrier-hawk (subfamily Polyboroidinae) - Its "double-jointed" legs can bend forwards and backwards, allowing it to raid the nest cavities of smaller birds for fledglings.
10. Cinereous vulture (subfamily Aegyptiinae) - The world's largest true raptor. Reported to fly very close to herds of wild sheep, perhaps in order to pick out potential prey.
11. Harpy eagle (subfaimly Harpiinae) - Hunts mostly sloths, though large monkeys are also eaten.
12. Shikra (subfamily Accipitrinae) - Feeds on everything from termites to bats to birds. It often uses metal wire as part of its nest.
13. Verreaux's eagle (subfamily Aquilinae) - A hyrax specialist, though it will also hunt small antelope and other animals.