We are staying at Shipp's RV park in Chattanooga, Tn. Went for a walk around the lakes here and just happen to hear this strange squawking noise coming from a very tall dead tree. Looking up we saw a hap hazard looking nest with 4 baby (very large baby) Blue Herons being feed by Mom! What a sight! Not sure how they stay in the nest! They appear to be almost big enough to leave....considering they are almost as big as Mom!