From 19 April through August 2025, a Swallow-tailed Kite, possibly a single individual, was seen at various locations straddling the Mexico/USA border, from El Rosario, Baja California, northwest 585 km to western Ventura County, California. Photographed at Ensenada, Baja California, as well as at various locations north of the border, it represents a first photo-documented record of the Swallow-tailed Kite for the peninsula. After spring wanderings both north and south, it summered at Machado Lake in Harbor City, Los Angeles.