I walked a portion of the multiuse path on the west side of the Santa Cruz this morning. I parked near the future site of the Cortaro Bosque and traveled north to El Rio Park, which overlooks Rattlesnake Pond. El Rio is small but my children enjoyed the playground and swings while I divided my attention between them and the birds around - more than 30 species in 15 minutes including Lawrence's Goldfinches, Rock Wren and a Great Egret.
Rattlesnake Pond from El Rio Park
Cortaro Bosque construction
I decided to make a map of the area, since many of the online maps are a year or two old and there's a lot of construction going on.