The National Audubon Society and American Bird Conservancy stated Wednesday that about one-quarter of the more than 700 species that breed in the USA are threatened.
A variety of human activities threatens habitat loss. Energy development, introduction and invasion of foreign animals and disease, urban sprawl and global warming are the cited causes of declining numbers for 217 kinds of threatened and endangered birds.
It may not seem like a big deal to loose a few feathered friends at the bird feeder, but every link in the food chain has developed over a long period of evolution. A migratory bird gone here can mean an insect population out of check somewhere else; a piece of the grand puzzle missing.
Leave a comment