Mated pair of Brandt's Cormorants tend to the nest they have built on sea cliffs. Note the colors they assume during mating season: striking blue gular pouch (throat) along with faint blue-green iridescence in their plumage.
Species: Brandt's cormorant, Phalacrocorax penicillatus
Location: La Jolla, California
Image ID: 40130
A Perfect Brown Pelican Head Throw with Distant Ocean in Background, bending over backwards, stretching its neck and gular pouch. Note the winter breeding plumage, yellow head, red and olive throat, pink skin around the eye, brown hind neck with some white neck side detail, gray breast and body.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Location: La Jolla, California
Image ID: 40794
Clark's Grebes rushing side by side, a spectacular courtship behavior in which the aquatic birds literally run on the surface of the water while slapping their feet up to 20 times per second.
Species: Clark's Grebe, Aechmophorus clarkii
Location: Lake Wohlford, Escondido, California
Image ID: 40842
Two Western Grebes in a Spectacular Rush Across the Surface of Lake Wohlford. Rushing is a courtship behavior among grebes and requires the aquatic birds to step as rapidly as 20 beats per second to walk across water in this way. Simply amazing.
Species: Western Grebe, Aechmophorus occidentalis
Location: Lake Wohlford, Escondido, California
Image ID: 40867
Western Grebes rushing in a courtship display. Rushing grebes run across the water 60 feet (20m) or further with their feet hitting the water as rapidly as 20 times per second. Lake Hodges, San Diego.
Species: Western grebe, Aechmophorus occidentalis
Image ID: 36887
Western Grebes rushing in a courtship display. Rushing grebes run across the water 60 feet (20m) or further with their feet hitting the water as rapidly as 20 times per second. Lake Hodges, San Diego.
Species: Western grebe, Aechmophorus occidentalis
Image ID: 36889
California Brown pelican in flight, soaring along sea cliffs above the ocean in La Jolla, California. The wingspan of the brown pelican is over 7 feet wide. The California race of the brown pelican holds endangered species status.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Image ID: 37412
California Brown Pelican claps its jaws, sometimes rapidly several times, perhaps to dislodge debris or simply because its fun and feels good. This is not the same as the "yawn" that precedes a head throw. Adult winter breeding plumage with brown hind-neck.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Location: La Jolla, California
Image ID: 38590
Adult California brown pelican in transition from non-breeding to breeding winter plumage. Note the brown hind neck of a breeding brown pelican is just filling in. This pelican already displays the red and olive throat and white and yellow head feathers of an adult winter brown pelican.
Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus
Location: La Jolla, California
Image ID: 38679