I led a large group on the weekly free bird walk at Patagonia Lake. It was surprisingly quiet, without any particularly unusual species, but it was very pleasant nonetheless.
Guided bird walks take place every Friday morning at the lake, between November and March, starting at either 8:00 or 9:00. They leave from the birding trail head towards the eastern end of the lake. The walks are free, but there is an entrance fee to enter the state park.