Saturday, March 29, 2014

Great Tailed Grackle


Photographed in Oklahoma! A big, brash blackbird, the male Great-tailed Grackle shimmers in iridescent black and purple, and trails a tail that will make you look twice. The rich brown females are about half the male’s size. Flocks of these long-legged, social birds strut and hop on suburban lawns, golf courses, fields, and marshes in Texas, the Southwest, and southern Great Plains. In the evening, raucous flocks pack neighborhood trees, filling the sky with their amazing (some might say ear-splitting) voices.

In winter, enormous flocks of both male and female Great-tailed Grackles gather in “roost trees.” These winter roosts can contain thousands of individuals, with flocks of up to half a million occurring in sugarcane fields in Texas’s Rio Grande Valley. In 1900 the northern edge of the Great-tailed Grackle’s range barely reached southern Texas. Since the 1960s they’ve followed the spread of irrigated agriculture and urban development into the Great Plains and West, and today are one of North America’s fastest-expanding species.

Great-tailed Grackle Range Map

Sunday, March 2, 2014

Common Raven


The intriguing Common Raven has accompanied people around the Northern Hemisphere for centuries, following their wagons, sleds, sleighs, and hunting parties in hopes of a quick meal. Ravens are among the smartest of all birds, gaining a reputation for solving ever more complicated problems invented by ever more creative scientists. These big, sooty birds thrive among humans and in the back of beyond, stretching across the sky on easy, flowing wingbeats and filling the empty spaces with an echoing croak.

The Common Raven is an acrobatic flier, often doing rolls and somersaults in the air. One bird was seen flying upside down for more than a half-mile. Young birds are fond of playing games with sticks, repeatedly dropping them, then diving to catch them in midair. Common Ravens are smart, which makes them dangerous predators. They sometimes work in pairs to raid seabird colonies, with one bird distracting an incubating adult and the other waiting to grab an egg or chick as soon as it’s uncovered. They’ve been seen waiting in trees as ewes give birth, then attacking the newborn lambs. They also use their intellect to put together cause and effect. A study in Wyoming discovered that during hunting season, the sound of a gunshot draws ravens in to investigate a presumed carcass, whereas the birds ignore sounds that are just as loud but harmless, such as an airhorn or a car door slamming.
Common Raven Range Map

Saturday, February 1, 2014

Bullock's Oriole



This is a super rare visitor to Alabama.  Perhaps the only Bullock's Oriole to visit Alabama.  We are sending pictures to be reviewed by birding organizations in Alabama to confirm this sighting.

Wilson's Snipe


Photographed out in the fields of west Tuscaloosa this common shorebird of wet, grassy spots, the Wilson's Snipe has an extremely long bill that it uses to probe in the mud for small invertebrates. Its camouflage is so good that it often is not seen before it flushes from the grass.

The long bill of the Wilson's Snipe is flexible. The tips can be opened and closed with no movement at the base of the bill. Sensory pits at the tip of the bill allow the snipe to feel its prey deep in the mud. The clutch size of the Wilson's Snipe is almost always four eggs. The male snipe takes the first two chicks to hatch and leaves the nest with them. The female takes the last two and cares for them. Apparently the parents have no contact after that point.

Wilson

Sunday, January 26, 2014

American Pipit


The American Pipit is a small, slender, drab bird of open country. Although it appears similar to sparrows, it can be distinguished by its thin bill and its habit of bobbing its tail.

In an alpine population in the Beartooth Mountains of Wyoming, a snow storm buried 17 American Pipit nests for 24 hours. All of the nestlings that were 11 days or older survived, but only a few of the younger ones did.

American Pipit Range Map

Sunday, January 19, 2014

Hermit Thrush


An unassuming bird with a lovely, melancholy song, the Hermit Thrush lurks in the understories of far northern forests in summer and is a frequent winter companion across much of the country. It forages on the forest floor by rummaging through leaf litter or seizing insects with its bill. The Hermit Thrush has a rich brown upper body and smudged spots on the breast, with a reddish tail that sets it apart from similar species in its genus.

Males usually gather food for the nest, while females feed the nestlings. The young birds start by eating bits of larvae, then grasshoppers, moths, and spiders. One Hermit Thrush has been seen trying to give a nestling a salamander more than 1.5 inches long. Hermit Thrushes sometimes forage by “foot quivering,” where they shake bits of grass with their feet to get insects. They also typically begin to quiver their feet as they relax after seeing a flying predator. Some scientists think the quivering happens as the bird responds to conflicting impulses to resume foraging or continue taking cover. East of the Rocky Mountains the Hermit Thrush usually nests on the ground. In the West, it is more likely to nest in trees.
Hermit Thrush Range Map

Gadwall


In a world where male ducks sport gleaming patches of green, red, or blue, the Gadwall’s understated elegance can make this common duck easy to overlook. Males are intricately patterned with gray, brown, and black; females resemble female Mallards, although with a thinner, darker bill. We don’t tend to think of ducks as pirates, but Gadwall often snatch food from diving ducks as they surface. This widespread, adaptable duck has dramatically increased in numbers in North America since the 1980s.

Female Gadwall produce an egg a day while they are laying their 7–12-egg clutches. To meet their demand for protein during this stressful time, female Gadwall eat more invertebrates than males during this period—in addition to using reserves of nutrients they’ve stored in their bodies during the winter.
Gadwall Range Map