Birds

Why Some Hummingbird Females Evolved To Resemble Males A Puzzle

Why Some Hummingbird Females Evolved To Resemble Males A Puzzle

Some female white-necked jacobin hummingbirds have male-like plumage and mimic male appearance — but not male behavior, researchers report

Every Bird Has A Dinosaur Moment Just Before Hatching

Every Bird Has A Dinosaur Moment Just Before Hatching

The bird pelvis is an example of terminal addition, a biological mechanism in which ancestral features continue to appear in an animal until late in its development.

What Does An Osprey Eat

What Does An Osprey Eat

Osprey have several adaptations that help it hunt fish, including closable nostrils to keep out water during dives. The kind of fish they hunt depends on what region the bird is living in.

The American Dipper

The American Dipper

American Dippers have a black cap, brownish-black back, and white underparts. They are also known as “water ouzels” or “water dippers” because they spend most of their time swimming underwater

Lava Gull

Lava Gull

Lava gulls are omnivores like most Larus gulls, generally scavenging or stealing from nests and from fishers, but will also catch fish, small crustaceans, and newly hatched lizards, iguanas, and turtles.

Swallow-tailed Gull

Swallow-tailed Gull

The Swallow-tailed gull (Creagus furcatus) is a nocturnal foraging seabird that breeds mostly in the Galapagos Islands; a few pairs nest on Malpelo Island off Colombia.

Glaucous-winged Gull

Glaucous-winged Gull

The glaucous-winged gull is rarely found far from the ocean, and is a familiar sight from the western coast of Alaska to the coast of Washington.

Northwestern Crow

Northwestern Crow

The northwestern crow can be told apart from the American crow (Corvus brachyrhynchos) by its body size, which is about 10% smaller, and its smaller feet

Colors Of Hummingbirds Go 56% Beyond All Other Birds, Recent Research Finds

Colors Of Hummingbirds Go 56% Beyond All Other Birds, Recent Research Finds

Diversity of bird-visible colors of hummingbirds plumages outdoes the known diversity of colors found in the plumages of all other bird species combined