Look at the map of the Earth HERE. Give it a minute or two to load and then check out the links associated with the "pins" on the map. Hundreds of thousands of dead birds and fish around the globe in a matter of a few days. Very strange, indeed.
I'm going out on a bit of a conspiracy limb here, but, you will notice that except in the USA, the vast majority of the dead animals are right along the sea shore. Bear with me, it's coming.
There were and still are millions of gallons of oil and dispersants like Corexit (proven to be hazardous and the EPA asked BP to stop applying, which BP ignored), associated with the BP Gulf oil spill, flowing around the globe in the currents of the oceans. Now, back to the USA and the large numbers of dead birds and fish. Notice on the map that the majority to the deaths are in the Eastern Half of the country, either along the coasts that are associated with the Gulf Stream or, inland directly North and East of the Gulf of Mexico.
Where were all of those chemicals again, oh, yeah the Gulf of Mexico. Remember the blizzard of Christmas 2010? Where did all of the moisture come from? Well, in California, Arizona, New Mexico and Western Texas, it was from the Pacific Ocean. As the storm moved East, it took a dip with the Jet Stream and picked up a tremendous amount of water from the warm Gulf of Mexico and deposited all of that moisture in the form of snow and rain all along the Eastern half of the Country.
Is there any validity to my hypothesis? I don't know, but it sure seems coincidental.