I assume tree swallows are different than barn swallows?...sorry, was just reminded of an old Jimmy Stewart line about barn swallows...lovely little bird here and beautifully captured.
I just love these birds and swifts the flight is so lovely to watch and to see them skimming across the top of water is amazing.Again this is one outstanding capture with loveky detail amazing colours and love the shine in the head and back feathers .Plus the light in this photo is perfect Garrett ! so well done to a great capture.They will be arriving in the UK in about two or three mouths time.
You were lucky to get this shot and a splendid shot it is!!! He has beautiful plumage and the blue iridescence on the upper portion is outstanding. Excellent work Garrett!!!