[Maine-birds] Benton - Sebasticook River - Where are the Blue Birds?

Many Osprey (sitting on nests), three Eagles (one immature) soaring and landing in the fields quickly followed by Ravens looking for leftovers, Great Blue Heron, Scout Tree Swallow Sunday, many Tree Swallows Monday, Killdeer, many ducks flying up and downstream or drifting down the river.  One bird missing:  Blue Birds.  Anyone seen any Blue Birds?

Allan