Have you ever seen a Heermann's Gull? These birds live on the west coast of the United States and Mexico. There are about 150,000 pairs of them and 95% of these nest on the island of Isla Rasa off Baja California. Audubon calls it one of North America's most beautiful gulls. Among other gulls in this area, Heermann's Gulls are easy to identify: breeding adults are dark gray above and light gray below, they have a white head and bright red bill with black tip. They are about the same size as a Ring-billed Gull. Isla Rasa is included in the Islas del Golfo California Biosphere Reserve. Because so many of these birds nest in one place, the entire species is vulnerable to disturbances there, which include harvesting of eggs by fishermen, industrial development and predation by introduced mammals.

Photo by Mike Baird (via Flickr)

Photo by Mary Angelini (via Flickr)

If you like this cute gull, check out our other Birdorable terns and gulls.

This week we've added another cute bird to Birdorable: the Black-legged Kittiwake. The above photo of cliffs in Ireland shows an adult Kittiwake on the left and a juvenile on the right. Juvenile individuals have black markings on the wings, neck and head. There are actually two races of Black-legged Kittiwake: one in the North Atlantic ocean and another in the North Pacific ocean.

The first one, which is common throughout Europe and the east coast of North America, has only three normal toes. Hence its latin name Rissa tridactyla, which means "three-toed". Its hind toe is reduced to a tiny bump. Kittiwakes spend most of their lives out at sea and come ashore only to breed. They actually seldom walk, so its legs are much shorter than those of other gulls. And who needs a hind toe if you hardly ever walk, right?

Photo by tinyfishy

We often saw Black-legged Kittiwakes on the North Sea coast when we lived in the Netherlands and I always thought they were particularly cute. Here's a juvenile that we saw flying around at IJmuiden, a coastal town west of Amsterdam:

Photos by Amy Evenstad

Kittiwakes breed in large colonies on rocky cliffs and is very noisy on the breeding ground, as is evident from the video below. They are capable of utilizing the sheerest of vertical cliffs as their nesting site.

The Birdorable Kittiwake is available on t-shirts and other apparel. This is our totally cute version of the Black-legged Kittiwake!