Furthermore , the male white - tailed trogon lacks barring to the undertail .
This species resembles the white - tailed trogon , but the latter is larger and has a complete pale blue eye - ring in both sexes .
The male white - tailed trogon lacks barring to the undertail .
This species resembles the white - tailed trogon , but the latter is larger and has a complete pale blue eye - ring in both sexes .