Check out
http://www.birdstoppers.com/site/439038/page/602546
, for a positive ID, you can even listen to the call! There is a list of non-lethal controls there.
Hi, I'm new to this forum. I am looking for a list of these 'non-lethal controls' I just came back from my chicken coop where I have some hens sitting on eggs and a rooster. 3 chicks have hatched and are in a separate cage with a mama.
The ravens have also just become very active and hungry...