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Bonaparte's gull in immature (first-winter) plumage, showing the tail band and brown wing pattern cited in Ord's description of the species. When George Ord first described Bonaparte's gull in 1815, he gave it the scientific name Sterna philadelphia, and the English name 'Banded-tail Tern'; [2] the description clearly identifies it as a bird in first-winter plumage, while "The slender and tern ...
Gulls can open a shunt between these vessels, turning back the bloodstream above the foot, and constrict the vessels in the foot. This reduces heat loss by more than 90 percent. In gulls, the temperature of the base of the leg is 32 °C (89 °F), while that of the foot may be close to 0 °C (32 °F). [1]
The age of the perch is highly based on the condition of the lake. Most research has shown the maximum age to be approximately 9–10 years, with a few living past 11 years. Yellow perch have been proven to grow the best in lakes where they are piscivorous due to the lack of predators. Perch do not perform well in cold, deep, oligotrophic lakes ...
In turn, bluegill are prey to many larger species, including largemouth bass, smallmouth bass, striped bass, [15] trout, muskellunge, turtles, northern pike, yellow perch, walleye, catfish, and even larger bluegill. Herons, kingfishers, [15] and otters have also been witnessed [citation needed] catching bluegill in shallow water.
Laridae on Lake Baikal. The family Laridae was introduced (as Laridia) by the French polymath Constantine Samuel Rafinesque in 1815. [1] [2] Historically, Laridae were restricted to the gulls, while the terns were placed in a separate family, Sternidae, and the skimmers in a third family, Rynchopidae. [3]
The species range from 28 cm up to 48 cm long, with Bonaparte's gull being the smallest, and Andean gull the largest. In all species, the body and tail are white, and the upperwing pale grey; the wingtips have distinct grey, white, and black patterns important for identification.
After some patience, the gull did what I wanted and I was able to take this colorful photo." Image credits: Nature Photographer of the Year (NPOTY) 2024 #29 Category Nature Art: Runner-Up, "Fallen ...
Larger species, such as the great skua, regularly kill and eat adult seabirds, such as puffins and gulls and have been observed killing birds as large as a grey heron. [5] On the breeding grounds, the three, more slender northern breeding species commonly eat lemmings. Those species that breed in the southern oceans largely feed on fish that ...