American kinglet with a notable song and in the male a red crown patch
English: ruby-crowned kinglet, ruby-crowned wren, Regulus calendula
ruby-crowned_wrenEnglish
Regulus calendula, ruby-crowned kinglet, ruby-crowned wren
Regulus calendula, ruby-crowned kinglet, ruby-crowned wren
English: ruby-crowned kinglet, ruby-crowned wren, Regulus calendula