Head towards Delta and watch were the birds are going to roost. Not all go back into town. Some can be found in desert just south of town. But keep it quiet, not many people know this. I just would like to get you on one for the slam. Thanks for doing it helps with allot of projects. And good luck if you go down. Don't go into that area if it's been wet. you will get stuck.
This has been good on opening day. You want to be on the east end when they come off at day light.
https://goo.gl/maps/Px5acaM7W3YiNhEs9