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The greater sandhill crane proper initially suffered most; by 1940, probably fewer than 1,000 birds remained. Populations have since increased greatly again. At nearly 100,000, they are still fewer than the lesser sandhill crane, which, at about 400,000 individuals continent-wide, is the most plentiful extant crane. [26] [40]
However, North America's other crane species, the whooping crane, is endangered. Only about 80-to-85 whooping cranes currently live in Wisconsin, Lacy said. Only about 80-to-85 whooping cranes ...
The Tibetan Plateau and remote parts of India and Bhutan. The HBW / BirdLife and Clements checklists place the demoiselle crane and blue crane in the genus Anthropoides , and the wattled crane in the monospecific genus Bugeranus , leaving only the red-crowned, whooping, common, hooded, and black-necked cranes in the genus Grus .
A mud motor (or drilling motor) is a progressive cavity positive displacement pump (PCPD) placed in the drill string to provide additional power to the bit while drilling. The PCPD pump uses drilling fluid (commonly referred to as drilling mud, or just mud) to create eccentric motion in the power section of the motor which is transferred as ...
A committee on sandhill cranes will meet Wednesday to discuss its findings and potential bills to assist farmers with crane-caused crop damage. A committee on sandhill cranes will meet Wednesday ...
The Legislative Council Study Committee on Sandhill Cranes met Aug. 1. The group is charged with offering ideas to reduce crane-caused crop damage.
The smaller size and colour of the forest species is thought to help them maintain a less conspicuous profile while nesting; two of these species (the common and sandhill cranes) also daub their feathers with mud which some observers suspect helps them to hide while nesting.
A mud pump (sometimes referred to as a mud drilling pump or drilling mud pump), is a reciprocating piston/plunger pump designed to circulate drilling fluid under high pressure (up to 7,500 psi or 52,000 kPa) down the drill string and back up the annulus. A mud pump is an important part of the equipment used for oil well drilling.