Although all Paradise flycatcher (Terpsiphone mutata) females are red, males come in multiple colors, including red/blue, white/blue, and intermediate patterns as shown here. Males sport long tails almost the length of their body, which may help them gain mating advantages as they compete for females. 

[Photo and caption by Meredith Lutz]

Sinclair, I., & Langrand, O. (2004). Birds of the Indian Ocean Islands: Madagascar, Mauritius, Seychelles, Reunion and the Comoros. Struik, Cape Town. S. Africa.