I used to be a semi-serious birdwatcher back in Ireland. When I came to the US, I (for some unknown reason) didn't keep up the hobby and have only in the past year begun keeping track of the species I see (and even then only sporadically). Today, I saw a pair of Zone Tailed Hawks (Buteo albonotatus) ... making 100 species since I began to keep count.
Beautiful picture: that's a textbook zone-tailed hawk. Congratulations from a fellow ex-Irish birder!