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I believe they are a species of cricket.
While most likely IS a Red-tailed hawk, there are other species in the area, I believe. It could possibly even be a Northern Goshawk, but from this angle it is difficult to ID the features of plumage (Goshawk has a brown and white mottled torso), but a juvenile looks similar to a Red-tailed Hawk.
Looks like a Garden Orb Weaver web to me...
Velvet Ant might be one of the non-social species of ants. I'm not totally sure but I think this is the case.