Of the approximately species in the Falconiformes order, thirteen are listed as Critically Endangered, facing an extremely high risk of extinction, or Endangered, facing a very high risk of extinction. Another fifty-five are listed as Vulnerable, facing a high risk of extinction, or Near Threatened, close to becoming threatened with extinction. One reason so many are in trouble is that a lot of habitats have changed from forests and grasslands to farms and cities.
When that happens, the prey animals that live in the habitats often disappear—the raptors that lived there cannot find the food they need, so they often move away or die off. When raptors can no longer live in an area, this indicates that an environment may no longer be healthy for the all of the wildlife and humans living there. For example, if some poisonous chemicals get into a lake, they get passed along from little fish to bigger fish, as the fish eat one another.
When an eagle eats a large fish from the lake, it takes in all of the poison passed along to the fish. In the s and s, bald eagles in the United States were laying eggs with such thin shells that they broke before hatching. It took some detective work by scientists to discover that the birds were being harmed by an insect poison called DDT.
The poison was being passed along to the birds from the animals they ate, and these poisons were making the eggshells thin. DDT is now banned in the U. But it is still being used in many other countries, and conservationists are working hard to change that. Elliott, and J. Sargatal, eds. Handbook of the Birds of the World. Barcelona: Lynx Edicions, Parry-Jones, Jemima.
Perrins, Christopher, ed. Firefly Encyclopedia of Birds. Buffalo, NY: Firefly Books, Lohmus, A. More information about this seller Contact this seller 2. Seller Inventory D06F More information about this seller Contact this seller 3.
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Published by National Wildlife Federation. About this Item: National Wildlife Federation. Mass Market Paperback. A readable copy. All pages are intact, and the cover is intact. Pages can include considerable notes-in pen or highlighter-but the notes cannot obscure the text.officegoodlucks.com/order/50/2795-como-rastrear-un.php
All About Birds Zoobooks Set
Seller Inventory GI5N More information about this seller Contact this seller 4. Published by Bt Bound About this Item: Bt Bound, Former Library book.
- Just in Sequence (German Edition)!
- Du silence à la parole (French Edition).
- Luther and Copernicus: A Study of Resurrection and Research, Christianity and Cosmos.
Shows some signs of wear, and may have some markings on the inside. Seller Inventory GRP More information about this seller Contact this seller 5. A copy that has been read, but remains in clean condition.
- Der Weg als Ziel? - Schreibprozesse im Deutschunterricht (German Edition).
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- Ramonas Radio Soapbox?
- From Contention to Democracy!
The spine may show signs of wear. Pages can include limited notes and highlighting, and the copy can include previous owner inscriptions. Seller Inventory GI3N More information about this seller Contact this seller 6. Satisfaction Guaranteed!
Book is in Used-Good condition. Pages and cover are clean and intact. Used items may not include supplementary materials such as CDs or access codes. May show signs of minor shelf wear and contain limited notes and highlighting. Seller Inventory More information about this seller Contact this seller 7.
Zoobooks Eagles – Store
Published by Child's World Inc About this Item: Child's World Inc, Library Binding. Ships from the UK. More information about this seller Contact this seller 8. From: medimops Berlin, Germany. Seller Inventory MG.
More information about this seller Contact this seller 9. More information about this seller Contact this seller Condition: GOOD. Spine creases, wear to binding and pages from reading. May contain limited notes, underlining or highlighting that does affect the text. Accessories such as CD, codes, toys, may not be included.
- All About Birds Zoobooks Set.
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- All About Raptors - Further Reading | SeaWorld Parks & Entertainment.
Condition: As New. An apparently unread copy in perfect condition. Dust cover is intact; pages are clean and are not marred by notes or folds of any kind. Seller Inventory GI2N Published by Child's World Inc.