I could be out in left field but down here if you look at when the migration started pushing west it corresponds with one factor that never changes every year. Wind towers they started going up in the eastern part of sodak . At the start and through the mid 2000 Watertown was always huge bird numbers now I think we have as many over here. Might not affect anything but those big ass blades spinning affects the birds I think.They don’t have a fucking clue how many they’re are. When estimates range from 5-21 million it tells me they don’t really know. I don’t think the numbers have changed a lot. I think migration patterns have. We see a lot more birds both spring and fall now in central ND than we used to. The James river and devils lake used to be the hot corridor. I think it’s slowly changing. I think a lot of the James river birds have started using this corridor as it generally opens sooner. Personally most falls and many springs it feels like there are more birds than the year before. Mine opinion is anecdotal as well so I can definitely agree well probably never know when the key focus of half of America is if women can have a penis.