Thanks for the ID.....I didn't realize the juveniles did not have color on their chest so it threw me off. molly

Welcome! First, nestboxes should never be mounted on fences, wooden posts, trees or anything else a predator can easily climb up. They should be mounted on slick metal poles (conduit) with predator baffles (wobbling stovepipe) and put up at least 15 feet away from any fence/tree or anything a predator can jump from. Your raccoon you relocated could be back anytime and or another raccoon could come by and see its happy meal sitting waiting on the fence for it. Please visit sialis.org for helpful information on properly mounting nestboxes and info on sparrow spookers/wren guards etc. If you see birds sitting with the Blues and not being chased away they are not wrens or HOSP. They are most likey House Finches which like to hang with Blues for some reason. However being you are on a farm with other farms around you probably most likely have HOSP around. A sparrow spooker will not scare the Blues away from their nesting and I would put one up asap, right after you move that box off that fence and to a safer spot about 15 feet away from the fence. Yes you can move an active nesting like this, the Blues won't abandon it because of moving it. As far as the TRES you can do the same with that box but you will need to be much more careful if there are eggs. It is really hard to see in their nests because of all the feathers but usually when it is loaded with feathers that means there are eggs in there. I just did a nestbox switch on an active Blues nesting because the momma blue laid seven eggs (which all hatched)in a smaller Gilwood style box, it has a 3 1/2" x 4 1/4" floor. I switched the nest to a larger box mounted on the same pole and had no problems with the adults accepting it. The nestlings were five days old. Good luck! Donna

I put up an old umbrella--I used a plastic tie and fastened the handle to the pole of a shepherd's hook-the main part of the umbrella is resting on the 2 hooks of the pole-Mom does not seem to mind it at all. Hope it helps a little. Now if the wind will go down and not up I think we will be fine.

Did a count later today and there are 4 babies. Mom did not eat the meal worms I put out today. Weather has gone to not being so hot and so I guess she is happy with the bugs that she can get on her own. She and Dad were busy at the nest site and I saw several other blues in the area (not sure if they are their young but they seems to tolerate them being around, so I am guessing that they are.)