What sea bird has a split tail?

What kind of birds have a forked tail?

Birds with Forked Tail. Barn Swallow: Medium swallow with glittering blue-black upperparts, red-brown forehead, chin and throat. Dark blue-black breast band, belly is white to orange. Tail is deeply forked with long outer streamers.

Is a Swallow-tailed Kite rare?

Swallow-tailed Kites are beginning to return to former breeding areas, especially in east Texas and Louisiana. They are rare but regular vagrants north of their mapped range, mainly seen in late spring.

Does a sparrow have a split tail?

They can reach 3.9 to 9.4 inches in length and 0.35 to 2.12 ounces of weight. The most prominent features on the body are long, pointed wings and long, forked or notched tail. Unlike swallows, sparrows have stocky body that can reach 4.5 to 7.1 inches in length and 0.47 to 1.5 ounces of weight.

Why do swallows have split tails?

A recent study in the Journal of Evolutionary Biology collected data for 72 swallow and 39 swift species to tackle this question. To put it bluntly, forked tails can be the outcome of two main evolutionary forces: sexual selection or natural selection. Previous studies have found evidence for both explanations.

Which of the following predator birds has a forked or fish like tail?

The fork-tailed drongo, also called the common drongo, African drongo, or savanna drongo (Dicrurus adsimilis), is a small bird that can be found across the Afrotropical realm of continental Africa, excepting the Congolian rainforests and Upper Guinean forests.

What does a swallowtail bird look like?

Swallow-tailed Kites are a sharp contrast of bright-white head and underparts and gleaming black wings, back, and tail. From below, the wing linings are white and the flight feathers are black. These birds are creatures of the air, spending most of their day aloft and rarely flapping their wings.

What is the difference between a sparrow and a wren?

Wrens: Similar in color to sparrows, wrens show more barring on the wings and tail than sparrows typically have. Their bills are long and thin for plucking insects, and while their tails may be long like sparrows, wrens typically hold their tails cocked sharply upward while sparrows do not.

Why do some birds have forked tails?

When spread out, forked tails with outer feathers roughly twice as long as inner feathers give a high ratio of lift to drag (LID) and generate a greater turning moment for a given drag than any other tail shape; forked tails also have very low drag when they are closed (Thomas 1993a).

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