She said 99 birds had been sighted, most of them sharp-shinned hawks.

Sharp-shinned hawks will sometimes nest in the deeper parts of the woods.

Sharp-shinned hawks alone were responsible for 26 percent of the incidents in which the predator could be identified.

Many rare species inhabit the park, including sharp-shinned hawks, butternut trees, and native orchids.

There are also Cooper's hawks and sharp-shinned hawks and two species of kestrels.

To birders, they are distinguishable as sharp-shinned hawks or northern harriers or merlins.

By 9:30 Carol Weiss had recorded a kestrel, two harriers and two sharp-shinned hawks.

Deer mice had been seen here, and chipmunks, damsel flies, sharp-shinned hawks, hairy woodpeckers, beetles.

Different species fly at different times - the broad-winged hawks flew in September, sharp-shinned hawks are in the air now.

"TWO sharp-shinned hawks above Four!"

In a rural area, he said, "they have to be aware of, say, a peregrine falcon, which is really fast, or sharp-shinned hawks, which hunt by surprise.

Black vultures, Cooper's hawks, merlins, red-shouldered hawks and sharp-shinned hawks have also been seen on the refuge.

Shrikes and sharp-shinned hawks (Accipiter striatus) are known predators of wintering Harris's Sparrows.

Other raptors that use witches' brooms as nesting sites include great gray owls, long-eared owls, goshawks, and sharp-shinned hawks.

Wildlife recorded here include the prairie and peregrine falcon, Cooper's and sharp-shinned hawks, red-legged frogs, and northwestern pond turtles.

During this period great numbers of 17 raptor species are commonly seen including peregrine falcons, ospreys, northern harriers, American kestrels, Cooper's and sharp-shinned hawks.

Ken Soltesz, curator at the preserve, will lead raptor watchers to a high elevation where the fly over of broad-winged, osprey and sharp-shinned hawks will take place.

Among the species to be seen in Westchester during the fall migration are broad-winged hawks, red-tailed hawks, sharp-shinned hawks, peregrine falcons, ospreys and bald eagles.

"If you're lucky, you could see Carolina wrens, fox sparrows, sharp-shinned hawks and some festive-looking cardinals," Mr. Stern said, as well as many other species.

Predators of adult red-bellied woodpeckers include birds of prey such as Sharp-shinned hawks and Cooper's hawks, black rat snakes and house cats.

Migrant raptors include short-tailed hawks, sharp-shinned hawks, merlins, peregrine falcons and swallow-tailed kites, while bald eagles and ospreys nest in the park.

In about two hours, 30 sharp-shinned hawks, four Cooper's hawks, one merlin (a type of falcon) and two hawks called northern harriers passed by the North Lookout.

Possible aerial predators include jaegers, blue jays, common ravens, northern saw-whet owls, common grackles, northern goshawks, and sharp-shinned hawks, and Cooper's hawks.

"Sharp-shinned hawks have to eat, just like chickadees do, and we have evidence that even with predation at feeders, chickadees do better with feeders than without them," he said.

Jonathan's room was way down at the far end, past a row of framed engravings of American birds of prey, Mississippi kites and sharp-shinned hawks and California condors.

The Sharp-shinned Hawk (Accipiter striatus) is a small hawk.

Sharp-shinned hawk (Accipiter striatus)

Shrikes and sharp-shinned hawks (Accipiter striatus) are known predators of wintering Harris's Sparrows.

H. elani - Cooper's hawk (Accipiter cooperii), sharp shinned hawk (Accipiter striatus)

There are isolated records of Short-tails predating Sharp-shinned Hawks (Accipiter striatus) and American Kestrel (Falco sparverius).

The Merlin will readily take prey that is flushed by other causes, and can for example be seen tagging along Sharp-shinned Hawks (Accipiter striatus) to catch birds that escape from this ambush predator into the open air.