Breeding of Wood Storks (Mycteria americana) in western Mexico is limited to a few known sites from Guerrero to Chiapas. However, except for nesting at one Oaxaca site in 2005, all the colonies were reported over 35 years ago, while more recently published bird surveys in coastal wetlands of western Mexico have not reported any nesting Wood Storks. During April 2014, a newly established colony at Mogote Prieto, a mangrove-fringed island in Laguna Cuyutlán's Basin III, Colima, was documented. This colony was visited on seven occasions during the spring and summer of 2014 and 2015. Maximum numbers in 2014 were 300 adult Wood Storks, including 36 clearly on nests and four carrying nesting materials (15 April 2014); 17 large, feathered chicks (12 June 2014); and 15 fledglings (12 July 2014). During 2015, there were fewer adults and nests, but more fledglings (n = 25 on 20 July 2015). Although the source of the nesting adults cannot be established, attention should be given to the conservation of this Wood Stork colony in western Mexico.