where are these birds found?
North America, extreme northeastern Siberia
Sandhill crane
The sandhill crane ("Antigone canadensis") is a species of large crane of North America and extreme northeastern Siberia. 
is chlorine bleach a pure substance or mixture Calcium hypochlorite is an inorganic compound with formula Ca(ClO). It is the main active ingredient of commercial products called bleaching powder does this element form oxides as well? Yes - Dichlorine monoxide, Chlorine dioxide what is the use of the latter during crises? Yes - It was used in the decontamination of buildings in the United States after the 2001 anthrax attacks; it was used to eradicate dangerous mold from houses inundated by the flood water after the disaster of Hurricane Katrina in New Orleans, Louisiana. when did the disaster by the hurricane happen? August 29, 2005 over southeast Louisiana from which water body did it originate? Atlantic Ocean how did it affected the economy? The Bush Administration sought $105 billion for repairs and reconstruction in the region; Katrina damaged or destroyed 30 oil platforms and caused the closure of nine refineries; hundreds of thousands of local residents were left unemployed what effects did it have on the environment? Beach erosion, massive tree loss along the Gulf Coast; Breton National Wildlife Refuge lost half its area in the storm. As a result, the hurricane affected the habitats of sea turtles, Mississippi sandhill cranes, Red-cockaded woodpeckers, and Alabama Beach mice. when was this refuge set up? UNANSWERABLE by whom is it managed? United States Fish and Wildlife Service. does it have specially designated areas? UNANSWERABLE what is the temperament of the cranes who were affected by the hurricane? They are fairly social birds that usually live in pairs or family groups through the year. are they under any threat of extinction? Some migratory populations of sandhill cranes face population threats due to interspecies competition with snow geese. Since the 1990s, snow geese have eaten waste corn on which the cranes also rely prior to migration. Sandhill Crane populations are also threatened by hunting. It is legal to hunt cranes throughout the states of the Central Flyway, from the Dakotas and Wyoming south to Oklahoma and Texas. what do they look like? Red foreheads, white cheeks, and long, dark, pointed bills. Adults are gray overall. During breeding, their plumage is stained and looks nearly ochre.
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Sandhill crane [SEP] Introduction
The sandhill crane ("Antigone canadensis") is a species of large crane of North America and extreme northeastern Siberia. The common name of this bird refers to habitat like that at the Platte River, on the edge of Nebraska's Sandhills on the American Plains. This is the most important stopover area for the nominotypical subspecies, the lesser sandhill crane ("Antigone canadensis canadensis"), with up to 450,000 of these birds migrating through annually. The sandhill crane was formerly placed in the genus "Grus", but a molecular phylogenetic study published in 2010 found that the genus, as then defined, was polyphyletic. In the resulting rearrangement to create monophyletic genera, four species, including the sandhill crane, were placed in the resurrected genus "Antigone" that had originally been erected by the German naturalist Ludwig Reichenbach in 1853.