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La Brea Tar Pits is an active paleontological research site in urban Los Angeles. Hancock Park was formed around a group of tar pits where natural asphalt (also called asphaltum, bitumen, or pitch; brea in Spanish) has seeped up from the ground for tens of thousands of years.
One of the first duck species recorded at La Brea. This species is well recorded in both the academy and museum pits. Gadwall [11] [56] Mareca strepera † Graceful pygmy goose [94] [95] [85] † Anabernicula gracilenta: At least 150 specimen representing 23 to 24 individuals An extinct species of shellduck. The average pygmy goose from La Brea ...
Waterfowl production areas (WPAs) are a small component of the National Wildlife Refuge System. There are over 2 million acres (8,100 km 2 ) of this prime duck-producing land, mostly prairie potholes in the Dakotas, Minnesota, and Montana.
The Bernardo Unit covers 1,700 acres (690 ha), and is designed to provide a winter habitat for waterfowl and sandhill cranes. It is located to the east of I-25 on U.S. 60. [ 4 ] Each year corn, alfalfa, winter wheat and milo are grown on about 450 acres (180 ha) to provide food, and in the fall several fields are flooded to provide resting areas.
The pits are the most extensive asphalt lakes in the state. [1] The McKittrick Tar Pits are one of the five natural asphalt lake areas in the world, the others being Tierra de Brea in Trinidad and Tobago, Lake Guanoco in Venezuela and the La Brea Tar Pits (Los Angeles) and Carpinteria Tar Pits (Carpinteria) both also located in the US state of ...
The Sue and Wes Dixon Waterfowl Refuge is a 3,100-acre riverine wetland in Putnam County, Illinois. Located just south of the county seat of Hennepin, it occupies the former site of Hennepin Lake and adjacent Hopper Lake. The reclaimed wetland is a Ramsar treaty site, a wetland of international importance. [2]
Creamer's Field Migratory Waterfowl Refuge is a 2,200 acre (7.3 km 2) bird sanctuary, located within the Fairbanks North Star Borough in the U.S. state of Alaska and partially within the city limits of Fairbanks. It consists of wetlands, fields, and forests. The refuge surrounds the former farm of Charles Hinckley and later Charles Albert ...
Lake Ilo. Lake Ilo NWR consists of 2,650 acres (11 km 2) grassland prairie and the 1,240-acre (5 km 2) Lake Ilo, which is a man-made lake.The prairie ecosystem of the region receives only 16.8 inches (42 cm) of precipitation annually so the lake provides nesting habitat and a sustainable water supply for hundreds of migratory waterfowl and other birds.