Biosphere - Plants & Animals playlist: https://www.youtube.com/playlist?list=PL1FCE267E4A977761
more at http://scitech.quickfound.net
"SHOWS BREEDING HABITS, HATCHING & DEFENSE FROM ATTACK OF BIRDS WHICH BREED EXCLUSIVELY NEAR WATER."
Reupload of a previously uploaded film with improved video & sound.
Originally a public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied.
The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).
Wikipedia license: http://creativecommons.org/licenses/by-sa/3.0/
Seabirds (also known as marine birds) are birds that have adapted to life within the marine environment. While seabirds vary greatly in lifestyle, behaviour and physiology, they often exhibit striking convergent evolution, as the same environmental problems and feeding niches have resulted in similar adaptations. The first seabirds evolved in the Cretaceous period, and modern seabird families emerged in the Paleogene.
In general, seabirds live longer, breed later and have fewer young than other birds do, but they invest a great deal of time in their young. Most species nest in colonies, which can vary in size from a few dozen birds to millions.,,
Gulls or seagulls are seabirds of the family Laridae in the sub-order Lari. They are most closely related to the terns (family Sternidae) and only distantly related to auks, skimmers, and more distantly to the waders. Until the twenty-first century most gulls were placed in the genus Larus, but this arrangement is now known to be polyphyletic, leading to the resurrection of several genera. An older name for gulls is mew, cognate with German "Möwe", Danish "måge", Dutch "meeuw" and French "mouette"; this term can still be found in certain regional dialects...
The shelducks, genus Tadorna, are a group of large birds in the Tadorninae subfamily of the Anatidae, the biological family that includes the ducks and most duck-like waterfowl such as the geese and swans.
The shelducks are a group of larger often semi-terrestrial waterfowl, which can be seen as intermediate between geese (Anserinae) and ducks. They are mid-sized (some 50--60 cm) Old World waterfowl. The sexes are colored slightly different in most species, and all have a characteristic upperwing coloration in flight: the tertiary remiges form a green speculum, the secondaries and primaries are black, and the coverts (forewing) are white. Their diet consists of small shore animals (winkles, crabs etc.) as well as grasses and other plants.
They were originally known as "sheldrakes", which remained the most common name until the late 19th century. The word is still sometimes used to refer to a male shelduck and can also occasionally refer to the Canvasback (Aythya valisineria) of North America...
The Piping Plover [ Plubber ] (Charadrius melodus) is a small sand-colored, sparrow-sized shorebird that nests and feeds along coastal sand and gravel beaches in North America. The adult has yellow-orange legs, a black band across the forehead from eye to eye, and a black ring around the neck. This chest band is usually thicker in males during the breeding season, and it's the only reliable way to tell the sexes apart. The bird is difficult to see when it is standing still, as it blends well with open, sandy beach habitats. It typically runs in short spurts and stops.
There are 2 subspecies of Piping Plovers: the eastern population is known as Charadrius melodus melodus and the mid-west population is known as Charadrius melodus circumcinctus. The bird's name is derived from its plaintive bell-like whistles which are often heard before the bird is visible.
Total population is currently estimated at about 6,510 individuals. A preliminary estimate showed 3,350 birds in 2003 on the Atlantic Coast alone, 52% of the total. The population has been increasing since 1999...
The oystercatchers are a group of waders forming the family Haematopodidae, which has a single genus, Haematopus. They are found on coasts worldwide apart from the polar regions and some tropical regions of Africa and South East Asia. The exception to this is the Eurasian Oystercatcher and the South Island Oystercatcher, both of which breed inland, far inland in some cases...
The four species of avocets /ˈævəsɛt/ are a genus, Recurvirostra, of waders in the same avian family as the stilts...