I love the fireworks theory.
Every July 5th there are millions of dead birds all over the US.
Here in Jersey about a year or so ago we had over 5000 dead birds. Govt. Officals gave
many resons on how they may have died. A few days later i quess they had to tell the truth. They said they had poisened the bird to thin them out. Or maybe that as well was just another way to cover up something else?? At least the people accepted that claim.