And in short-term periods of extreme temperatures, having a big beak can be a liability. Hot air from the environment will actually move into the beak, causing the bird to heat up too much, with ...

From 9-foot tall ostriches to albatrosses with gargantuan wingspans, here are some of the biggest birds in the world.

We have found, however, that this incredible diversity is underpinned by a hidden mathematical rule that governs the growth and shape of beaks in nearly all living birds.

Few people have the tenacity of ecologists Peter and Rosemary Grant, willing to spend part of each year since 1973 in a tent on a tiny, barren volcanic island in the Galapagos. Even fewer would ...

HILO, Hawai‘i (KHON2) — A Hawaiian hawk, or ‘io, was euthanized after being found “emaciated” and missing part of its beak on Hawai‘i Island.

HOUSTON — Residents along Brays Bayou are worried about a bird that has found itself in a precarious situation. The blue heron has trash stuck on its beak, preventing it from eating. Usually ...

Three cooperative birds and a model bird head helped scientists figure out what flamingos are actually doing when they stick their heads upside down underwater.

An analysis of 140,000 vocalizations from 77% of bird species showed that beak size and geography play a big role in the way birds sound.

By studying beaks in light of this mathematical rule, we can understand how the faces of birds and other dinosaurs evolved over 200 million years.

Beak sizes increase, and body sizes decrease - but why? How we are slowly unravelling the mystery behind changing body shapes in Australian birds.