Pavito alas blancas
Individuo observado en la alameda Zaragoza en Saltillo, Coahuila, el día 15 de enero de 2015.
Spectacled Whitestart/Redstart - alternate names, same species. I opt for "whitestart" because a) Ecuador guide says so, b) it's referring to the tail, which is white, not red.
The whitestarts are New World warblers in the genus Myioborus. The English name refers to the white outer tail feathers which are a prominent feature of the members of this genus (“start” is an archaic word for “tail”). Confusingly, they are sometimes named as “redstarts”, and the use of these less accurate names is still widespread in Central and North America, while whitestart has gained wider use in South America and is the name recommended by...