Two Birds in the Hand

Here is a close-up of "The Birds." Obviously I am not trained in nature or wildlife photography, hence the rather blurred and hard-to-read image (those birds were going fast). I don't know anything about these birds -- I am just assuming they are sparrows, but what kind? -- where they came from, why they're here, if this is a seasonal migration thing (are they on their way to Gibralter?), if this is a common occurrence (they obviously didn't see people as a threat), etc etc. I leave it to my online experts (i.e., you readers) to tell me. Me....I'm for the birds!