Checked on the chickens at the bay this evening. Stopped on the road in front of the coop because the new calves were playing 'king of the hill' on the burn pile (they just looked so darn cute). Then I noticed that the chickens weren't going in the coop and it was almost dark. Saw somthing 'flutter' in there and upon closer inspection saw it was not one but two young Eurasian doves in the coop. They apparently came in through the pop door and couldn't figure out how to get out. I opened the 'people' door and let them out but they actually didn't seem that terrified. I'm guessing they'll be back. Other than contamination with parasites, is there anything I should worry about with them in close proximity to the chickens?