Oil spills, water pollution, acid rain, war bombs, avicidal spraying,
electric power lines, barbed wire.. some of many dangers for migrating birds
War zone bombing, barbed wire, hunters, utility electroshocks, etc.
are some of many hazards for migrating birds
1. war zone bombs
http://www.ppu.org.uk/learn/infodocs/st_environment.html sucking jet engines
http://www.birdstrike.org/commlink/top_ten.htm 2. electroshocking utility lines
http://www.fws.gov/birds/documents/powerlines.pdf 3. acid rain from coalfired utilities
http://news.nationalgeographic.com/news/2002/08/0813_020813_acidrain.html 4. sucking jet engines
http://www.birdstrike.org/commlink/top_ten.htm 5. shotguns (senators bought by the hunter lobby who introduce bills to remove protection..)
http://www.ec.gc.ca/rcom-mbhr/default.asp?lang=en&n=13B4C8EE-1
http://en.wikipedia.org/wiki/Migratory_Bird_Treaty_Act_of_1918 6. bulldozers removing their homes, drying up their marshes
http://articles.latimes.com/1992-04-21/news/mn-585_1_gnatcatcher-habitat 7. oil spills weighting down birdfeathers before their deaths
http://news.nationalgeographic.com/news/2010/08/100810-us-oil-spill-bird-migration-vin-video/ 8. barbed wire
http://www.wildlifefriendlyfencing.com/WFF/Home.html 9. traps from nonhunter birdeaters
10. USDA and EU avicidal sprays
http://www.csmonitor.com/USA/Society/2011/0120/Bye-Bye-Blackbird-USDA-acknowledges-a-hand-in-one-mass-bird-death 11. water poisoned by insecticides, oil, arsenic, chromium, pcb's, pbb's ad infinitum
http://www.ehow.com/about_5317418_pollution-effects-birds.html 12. choking on plastic
http://articles.cnn.com/2009-11-03/tech/midway.atoll.albatross_1_midway-atoll-plastic-pacific-ocean?_s=PM:TECH
http://www.raisethefist.com/news.cgi?artical=wire/13_Of_Many_Hazards_For_Migrating_Birds_:_Indybay-53.article&feature=1&np=1