With warm air prevailing across the region, sky watchers should plan to spend a little time looking for Swallow-tailed Kites. April is traditionally a good month to find a wandering individual or two of this southern species in locations far to the north of typical present-day breeding locations.
This map shows April observations of the species in the eBird database. So, whether you are in Maine or Virginia or along the shoreline of the Great Lakes, go out and find yourself a Swallow-tailed Kite and then enter your observations in eBird!