Another migrant from up north I think. The northern version males & females look like this while the “Resident Yellow Warbler” here has a female that is also the same while the resident male has a reddish-brown cap. In my gallery I just keep them all together in the Yellow Warbler Gallery. 🙂 And there I have only one photo of a resident male, seen on Rio Tarcoles.
¡Pura Vida!