June 22, 2026 A Blue-gray Gnatcatcher (Polioptila caerulea) showing off the length of its extra long tail. Impressed by the small size of a Ruby-throated Hummingbird (Archilochus colubris)? Perhaps the size of this Blue-gray Gnatcatcher will surprise you as well. Their weights are quite similar, weighing in at a bit lighter than a few pennies.…