The golden-rufous tail of the Golden-tailed Sapphire helps indentify both sexes since they tend to appear dark. These sapphires are found around humid forest edges, second growth, light woodlands, plantations, gardens, and partially open areas with scattered trees. During the dry season, individuals congregate at large flowering trees and try to defend small floral territories. In less dry periods, birds often forage singly at flowers at various levels. The early rainy season also coincides with when males sing the most. Large and sudden seasonal migrations of these sapphires have been noted in Venezuela.