If this is your first time finding a Letterbox Hybrid geocache, bring a stamp that is meaningful to you. For example, I always have a corn-on-the-cob stamp with me when I am finding Letterbox Hybrid geocaches as I am MamaCobb. You will also need to bring a notebook with you to stamp using the stamp in the cache. I prefer pocket notebooks as they are easier to carry when geocaching.
A denizen of the forest interior, the Black-throated Blue Warbler inhabits large tracts of relatively undisturbed hardwood and mixed deciduous-coniferous forests in the northeastern United States and southern Canada, and south at higher elevations of the Appalachian Mountains to northern Georgia. Most individuals migrate along the eastern seaboard from the Appalachians to the Atlantic coast, and overwinter in forested habitats of the Greater Antilles from Puerto Rico to Cuba, Jamaica, and Hispaniola, with some in the Bahamas, along the coast of the Yucatan and Belize, and a few in south Florida.
Reference: Birds of the World - Cornell Lab of Ornithology