These birds are absent from the southern tip of Florida and the highest elevations of the Appalachian Mountains, but are found in eastern Mexico and in Cuba.

These birds are generally solitary or found in pairs early in the year, but family groups are common in the late summer and winter roosts may have two dozen or more birds in a single covey.

These are generally monogamous birds, though some evidence of polygamy has been noted.

These birds can raise 1-2 broods of 12-16 eggs per brood annually.

These birds are believed to have had a life span of about 20 to 25 years.

These are characteristics of mammals and birds.

Lovette, a member of the committee, said that more testing is needed to support that change, but concluded that " These results will likely initiate an interesting debate on how we should classify these birds.

These birds need about per pair so they can find enough food to feed their young and themselves.

These paired birds will mate every year between January and May.

These include from microscopic rotifers and insects, to fish, amphibians, birds and mammals.

These sand bars are often associated with large wetlands, which support large numbers of plant and animal species, as well as providing important rest areas for migratory birds.

These contain a rich southern biota ; typical examples include birds such as ibis and egrets.

These birds feed by hunting fish, squid and other small sea animals, for which they travel and dive quite extensively.

These same studies suggest, however, that moose learn quickly and adapt, fleeing an area if they hear or smell wolves, bears, or scavenger birds such as ravens.

These include all vertebrates with quadrupedal ancestors, including mammals, reptiles, amphibians, and birds.

These are either carrion-feeding or large raptors that can take live mammal prey, including Golden Eagle, Rough-legged Buzzard ( also known as the Rough-legged Hawk ), and Raven, or else seed-eating birds, including several species of grouse and crossbills.

These frequencies are invisible to humans, but visible to a number of insects and birds.

These birds are of great value as scavengers, especially in hot regions.

These eagles often target various arboreal or ground-dwelling mammals and birds, which are often unsuspectingly ambushed in such dense, knotty environments.

These included Guillaume Rondelet who described his observations in the Mediterranean and Pierre Belon who described the fish and birds that he had seen in France and the Levant.

These projects help to identify distributions of birds, their population densities and changes over time, arrival and departure dates of migration, breeding seasonality and even population genetics.

These flies are an important source of food for migratory and nesting birds.

These are mainly woodland birds with long tails and high visual acuity, hunting by sudden dashes from a concealed perch.

These data support the idea that non-breeding birds combine adrenal and / or gonadal DHEA synthesis with neural DHEA metabolism to maintain territorial behavior when gonadal testosterone secretion is low.

These banks may slowly migrate along the coast in the direction of the longshore drift, alternately protecting and exposing parts of the coastline.

These point defects can migrate and cluster with each other, resulting in dislocation loops and other defects.

These solvents, usually acidic, migrate through the weathering rock after leaching through upper weathered layers.

These cytokine factors are released into general circulation, where they migrate to the circumventricular organs of the brain due to easier absorption caused by the blood – brain barrier's reduced filtration action there.

These may cause pain, become infected, rupture and bleed, block the bile duct and cause jaundice, or migrate around the abdomen.

These sprouts then form loops to become a full-fledged vessel lumen as cells migrate to the site of angiogenesis.

These two words go back to the time before the Separation of the Elves, or rather to the time of the debate among them about the invitation by the Valar to migrate to Valinor.

These are made up of early Sertoli cells that surround and nurture the germ cells that migrate into the gonads shortly before sex determination begins.

These Monarchs migrate 2000 miles to reach Pacific Grove after their summer in Canada, often soaring as high as 3000 meters.

These birds come to Cuba every year from North America in the north hemisphere winter season. Arctic Terns breed in the arctic and subarctic and winter in Antarctica. Like many birds, seabirds often migrate after the breeding season.

These mesodermal cells that migrate along the dorsal midline give rise to a structure called the notochord.

These cells have the ability to migrate long distances, allowing chromatophores to populate many organs of the body, including the skin, eye, ear and brain.

These birds migrate in winter, mostly to the Pacific Coast where they range south to El Salvador on a regular basis ; vagrants may occur as far as Costa Rica.

These offspring have underdeveloped posterior limbs ( the pes can be webbed ), and following birth they migrate to the pouch where they attach to a nipple.

These cells then migrate to lymph nodes where they present the urushiol to T-lymphocytes and thus recruit them to the skin.

These birds do not migrate.

These birds migrate south ( mostly via the Central and Mississippi Flyways ) when the young are fledged and return in early spring, usually arriving on the breeding ground in May.

These sporozoites migrate to the salivary glands of the mosquito where they are injected into the blood and subcutaneous tissue of the next host the mosquito bites.

These being his grandsons Danfi, Tsedakah, Mafraj and Sarawi Further afield, in northeast India, the Mizo Jews claim descent from Manasseh, and call themselves Bnei Menashe ; in 2005 Shlomo Amar, Sephardi Chief Rabbi of Israel, announced that he regarded this claim to be true, which under the Law of Return allows them to migrate to Israel, as long as they formally convert to Israel's official form of Judaism.

These birds migrate to the United States or southern Canada to spend the winter.

These birds migrate to the southeastern United States, West Indies and Central America, leaving their summer range.

These birds migrate south and vacate areas at higher elevations.

These migrate to the southwestern United States and Mexico.

These birds have an unusual migration pattern as every few years in winter they migrate southwards in large numbers.