Shearwater wedge tailed petrel hydrobatidae storm

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Unformatted text preview: - 87 cm body length) – Tubes on top of bill – Feed mainly on squid and fish picked from surface or pursued in shallow dives – Mature at 3-12 years – Lifelong pair-bonds – Nest on rock piles or in self-dug burrows in colonies Great shearwater Wedge-tailed petrel Hydrobatidae (storm-petrels) – 21 species – Small body size (14 - 26 cm body length) – Tubes on top of bill – Relatively short wings (flutter near surface) – Patter feet on surface, perhaps to attract prey? (small fish) – Breed in self-dug burrows or crevices in colonies – Most visit nests at night European storm-petrel White-faced storm-petrel Pied-billed Grebe Western Grebe Horned Grebe Podicipediformes (grebes) • Podicipedidae: 22 species – All continents except Antarctica – Legs far back on body, feet lobed, tarsi laterally compressed – Tail reduced to small tuft – Very fast and agile underwater, can barely walk on land – Relatively small wings (take-off difficult), fast fliers, poor agility – Swallow (and then regurgitate) feathers – Eat fish and invertebrates – Elaborate mating rituals – Nest on floating/rotting vegetation – Chicks precocial, often strikingly colored, often carried on back (even during dives) Galapagos Flamingo Phoenicopteriiformes (flamingos) – 5 species – Large body, long neck, small head, pink/crimson plumage – Small, webbed feet – Suction filter-feed algae, zooplankton using highly modified bill – Gather in enormous flocks – Very long-lived, many 40 years old in nature – Erratic breeders, monogamous, nest is mound of mud – 1 egg, altricial chick fed “milk” for first few days – Young leave nest early and form large aggregations (up to 30,000 birds) • Parents feed only their own chick Ciconiiformes (herons, storks and allies) • Long-legged, long-necked birds • Hunt in shallow water or open fields • Colonial breeders • Nest in trees • No syrinx • Three families – Ardeidae (herons, egrets and bitterns) 65 species – Ciconiidae (storks) 19 species – T...
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