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| Male elk bugling during the fall rut. Large male elk are known as bulls. Male elk have large antlers which are shed each year. Male elk engage in competitive mating behaviors during the rut, including posturing, antler wrestling and bugling, a loud series of screams which is intended to establish dominance over other males and attract females. Image ID: 19693 Species: Elk, Cervus canadensis Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA | A humpback whale hovers motionless underwater in the ocean, inverted with head down and long pectoral fins held wide, near the Hawaiian island of Maui as it sings the famous "Song of the Humpback Whale". Scientists have strong evidence that only male humpback whales sing. Image ID: 02796 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA | Magnificent frigatebird, adult male on nest, with throat pouch inflated, a courtship display to attract females. Image ID: 16725 Species: Magnificent frigatebird, Fregata magnificens Location: North Seymour Island, Galapagos Islands, Ecuador |
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| California Brown Pelican head throw, stretching its throat to keep it flexible and healthy. Image ID: 28347 Location: La Jolla, California, USA | California brown pelican, portrait in pink-purple predawn light, rests on sandstone seabluff. The characteristic mating plumage of the California race of brown pelican is shown, with red gular throat pouch and dark brown hindneck colors. Image ID: 23646 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Western gulls, courtship behaviour. Image ID: 18397 Species: Western gull, Larus occidentalis Location: La Jolla, California, USA |
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| Male elk bugling during the fall rut. Large male elk are known as bulls. Male elk have large antlers which are shed each year. Male elk engage in competitive mating behaviors during the rut, including posturing, antler wrestling and bugling, a loud series of screams which is intended to establish dominance over other males and attract females. Image ID: 19697 Species: Elk, Cervus canadensis Location: Madison River, Yellowstone National Park, Wyoming, USA | Male elk bugling during the fall rut. Large male elk are known as bulls. Male elk have large antlers which are shed each year. Male elk engage in competitive mating behaviors during the rut, including posturing, antler wrestling and bugling, a loud series of screams which is intended to establish dominance over other males and attract females. Image ID: 19698 Species: Elk, Cervus canadensis Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA | Brown pelican portrait, displaying winter plumage with distinctive yellow head feathers and red gular throat pouch. Image ID: 28332 Location: La Jolla, California, USA |
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| Roosevelt elk, adult bull male with large antlers. This bull elk has recently shed the velvet that covers its antlers. While an antler is growing, it is covered with highly vascular skin called velvet, which supplies oxygen and nutrients to the growing bone; once the antler has achieved its full size, the velvet is lost and the antler's bone dies. This dead bone structure is the mature antler, which is itself shed after each mating season. Roosevelt elk grow to 10' and 1300 lb, eating grasses, sedges and various berries, inhabiting the coastal rainforests of the Pacific Northwest. Image ID: 25890 Species: Roosevelt elk, Cervus canadensis roosevelti Location: Redwood National Park, California, USA | California brown pelican preening. Image ID: 27261 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Brown pelican preening, cleaning its feathers after foraging on the ocean, with distinctive winter breeding plumage with distinctive dark brown nape, yellow head feathers and red gular throat pouch. Image ID: 22527 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA |
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| Brown pelican portrait, displaying winter breeding plumage with distinctive dark brown nape, yellow head feathers and red gular throat pouch. Image ID: 22529 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Brown pelican portrait, displaying winter plumage with distinctive yellow head feathers and red gular throat pouch. Image ID: 28329 Location: La Jolla, California, USA | California brown pelican preening. Image ID: 27262 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA |
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| Portrait of California brown pelican, with the characteristic winter mating plumage shown: red throat, yellow head and dark brown hindneck. Image ID: 23647 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Roosevelt elk, adult bull male with large antlers. This bull elk has recently shed the velvet that covers its antlers. While an antler is growing, it is covered with highly vascular skin called velvet, which supplies oxygen and nutrients to the growing bone; once the antler has achieved its full size, the velvet is lost and the antler's bone dies. This dead bone structure is the mature antler, which is itself shed after each mating season. Roosevelt elk grow to 10' and 1300 lb, eating grasses, sedges and various berries, inhabiting the coastal rainforests of the Pacific Northwest. Image ID: 25878 Species: Roosevelt elk, Cervus canadensis roosevelti Location: Redwood National Park, California, USA | Brown pelican, winter adult breeding plumage, showing bright red gular pouch and dark brown hindneck plumage of breeding adults. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning. Image ID: 20074 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA |
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| Brown pelican, non-breeding winter plumage. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning. Image ID: 20087 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Male elephant seals (bulls) rear up on their foreflippers and fight in the surf for access for mating females that are in estrous. Such fighting among elephant seals can take place on the beach or in the water. They bite and tear at each other on the neck and shoulders, drawing blood and creating scars on the tough hides. Image ID: 20369 Species: Elephant seal, Mirounga angustirostris Location: Piedras Blancas, San Simeon, California, USA | Brown pelican portrait, displaying winter breeding plumage with distinctive dark brown nape, yellow head feathers and red gular throat pouch. Image ID: 22565 Species: Brown pelican, Pelecanus occidentalis Location: La Jolla, California, USA |
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| Brown pelican. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning. In winter months, breeding adults assume a dramatic plumage with brown neck, yellow and white head and bright red gular throat pouch. Image ID: 15123 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Male elk bugling during the fall rut. Large male elk are known as bulls. Male elk have large antlers which are shed each year. Male elk engage in competitive mating behaviors during the rut, including posturing, antler wrestling and bugling, a loud series of screams which is intended to establish dominance over other males and attract females. Image ID: 19700 Species: Elk, Cervus canadensis Location: Madison River, Yellowstone National Park, Wyoming, USA | Bull elk in sage brush with large rack of antlers during the fall rut (mating season). This bull elk has sparred with other bulls to establish his harem of females with which he hopes to mate. Image ID: 19718 Species: Elk, Cervus canadensis Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA |
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| Brown pelican, winter plumage, showing bright red gular pouch and dark brown hindneck colors of breeding adults. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning. Image ID: 20081 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Brown pelican head throw, winter plumage, showing bright red gular pouch and dark brown hindneck plumage of breeding adults. During a bill throw, the pelican arches its neck back, lifting its large bill upward and stretching its throat pouch. Image ID: 20148 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Brown pelican closeup showing characteristic winter mating plumage, including yellow head, dark brown nape of neck and red gular throat pouch. Image ID: 20154 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA |
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| Brown pelican portrait, displaying winter breeding plumage with distinctive dark brown nape, yellow head feathers and red gular throat pouch. Image ID: 20232 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Brown pelican stretches its neck, to keep its throat pouch limber. The characteristic winter mating plumage of the California race of brown pelican is shown, with deep red gular throat, yellow head and dark brown hindneck. Image ID: 23648 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Portrait of California brown pelican, with the characteristic winter mating plumage shown: red throat, yellow head and dark brown hindneck. Image ID: 23654 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA |
Natural History Photography Blog posts (20) related to Mating
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