As a result, the species is now limited to three areas: the islands of Mona and Monito, where a subspecies developed (A. g. xmonensis); the Roosevelt Roads Naval Station area in eastern Puerto Rico; and the southern Puerto Rican dry forests and mangroves. Although all three locations are considered coastal subtropical dry forests, the species has been observed as far inland as the mountain town of Lares and in subtropical wet forests during the non-breeding season.
The species is now confined to three areas: the islands of Mona and Monito (where a subspecies, A. g. xmonensis, developed); the Roosevelt Roads Naval Station area on eastern Puerto Rico; and the southern Puerto Rican dry forests and mangroves. Despite these locations being categorized as coastal subtropical dry forests, the species has been observed in inland areas such as Lares and during non-breeding seasons within subtropical wet forests.