Hi everyone, I posted this here because I am not sure what category is appropriate. Ok, here is the problem: Most of you are probably familiar with the historical records as they apply to the bombing of Hiroshima during WW2. I have been studying this period for a very long time and I can't seem to find any evidence of dead birds at Hiroshima after the bombing. The historical record says that the destruction there was the product of a near-instantaneous high altitude blast of great magnitude. Hiroshima has 7 water deltas entering the city which suggests to me the presence of multitudes of birds especially seagulls. Why no birds scattered in the streets, why no bird shadows on walls or streets, where did they go and how could they leave before the blast? Any help would be greatly appreciated. I have other physics questions on this same topic so I would like to know where they should be posted, thank you.