Charlie Summers / American kestrel (Falco sparverius) flying with snake in talons, Elbert County, Colorado, USA.

Charlie Summers / American kestrel (Falco sparverius) with grasshopper in bill, perched on snag before returning to nest. Elbert County, Colorado, USA. July.

John Chan / American Kestrel (Falco sparverius) mobbing a juvenile Red-tailed hawk (Buteo jamaicensis), Bolsa Chica Ecological Reserve, Southern California, USA, November.

John Chan / Female American kestrel (Falco sparverius) taking off with lizard prey, Bolsa Chica Ecological Reserve, Southern California, USA.