Basic Description. With sooty black plumage, a bare black head, and neat white stars under the wingtips, Black Vultures are almost dapper.
Adult Gray Hawks are pale gray birds with finely barred chests and prominently banded black-and-white tails. The undertail coverts are white; the wingtips are dark. Immatures have dark brown backs with heavy brown streaks and spots on the underparts.
White-winged Black-Tyrant Knipolegus aterrimus.
Broad-shouldered blackbird with a hunchbacked look and a long conical bill. Males have a distinctive red shoulder patch bordered below by a white band.
Adults are steely blue-gray above with warm reddish bars on the underparts and thick dark bands on the tail. Juveniles are brown above and crisply streaked with brown on the upper breast, giving them a somewhat hooded look compared with young Sharp-shinned Hawks’ more diffuse streaking.
A falcons wings appear long and thing while a hawk’s wings look wider and rounded out. The falcon’s wings are best for high-speed stopping and diving, so you’ll see rapid, brief but powerful flapping, and speeds of over 100 miles per hour, with the peregrine falcon diving at 180 to 200 miles per hour.
A red shouldered hawk has unique and intricate black and white striped feathers on their wings and tails, while Cooper’s hawks do not have this. While both of these birds of prey have long tail feathers, the wingspan of the Cooper’s hawk is rounded, while the wingspan of the red shouldered hawk is square.
Measurements. Turkey Vultures appear black from a distance but up close are dark brown with a featherless red head and pale bill. While most of their body and forewing are dark, the undersides of the flight feathers (along the trailing edge and wingtips) are paler, giving a two-toned appearance.
The silvery or whitish gray wingtips (fingers) and flight feathers give the Turkey Vulture a two-toned appearance.
From a distance a soaring Turkey Vulture might look like a Red-tailed Hawk, but Turkey Vultures have longer, more rectangular wings, which the birds hold above horizontal, forming an easily visible V. Turkey Vultures are also much less steady when they soar.
Adults are colorful hawks with dark-and-white checkered wings and warm reddish barring on the breast. The tail is black with narrow white bands. Immatures are brown above and white below streaked with brown. All ages show narrow, pale crescents near the wingtips in flight.
One of the most noticeable differences is their size. Eagles are much larger than hawks, and have longer wingspans. Hawks have a similar appearance, but if you look carefully, you will notice that the wings of hawks tend to be more rounded, and they have short, broad, rounded tails and a stocky build.
The sparrowhawk has rounded wings and a relatively long, narrow tail. Males are small with a blue-grey back and white underparts showing reddish-orange barring. Females are much larger, with browner plumage above and grey bars below. They both have reddish cheeks.
Rusty Blackbirds are larger and chunkier than European Starlings. They also have a yellow eye whereas European Starlings have a dark eye.
Breeding males are an unmistakable black with white wing patches. Nonbreeding males, as well as females and immatures, are brownish above, pale with brown streaking below, with extensive white in the upperwing coverts and small white tips to the inner tail feathers. The bill is a distinctive pale blue-gray.
But they have declined dramatically because of the destruction of wetlands and native grasslands, shooting and pesticide use. Mowing and harvesting crops that tricolored blackbirds use for nesting has also devastated populations. Tricolored blackbirds have declined by nearly 90 percent since the 1930s.
habitat and plumage
cryptoleucus) of western North America, the bases of the neck feathers are white. Other species of ravens—some with white or brown markings—occur in Africa, southern Asia, Australia, and North America.
Somatic genetic mutation (i.e mutations that occur after conception) are associated with increased age, and indeed, older crows are more often seen with white feathers. Avian Pox is known to play a role in carotenism though not much is understood about this.
Ravens have bigger, curvier beaks relative to crows. While both species have bristles at the base of the beak, the raven’s are noticeably longer. Its throat feathers are also quite shaggy. Common Ravens are much less common than American Crows in the Eastern United States.
Females, however, are actually dark brown, with lighter brown streaks on the breast. Juveniles look similar to the fully-grown female but have copper streaks. Males have a bright yellow bill and distinctive yellow eye ring. Females have a duller, yellow-brown beak.
Common Grackles are blackbirds that look like they’ve been slightly stretched. They’re taller and longer tailed than a typical blackbird, with a longer, more tapered bill and glossy-iridescent bodies. Grackles walk around lawns and fields on their long legs or gather in noisy groups high in trees, typically evergreens.