Regulus calendula
Ruby-crowned Kinglet
Regulus ignicapilla
Common Firecrest
Regulus satrapa
Golden-crowned Kinglet
Taxonomic hierarchy
- Tyrannidae
- Menuridae
- Maluridae
- Meliphagidae
- Vireonidae
- Artamidae
- Rhipiduridae
- Monarchidae
- Laniidae
- Corvidae
- Callaeidae
- Notiomystidae
- Petroicidae
- Paridae
- Alaudidae
- Cisticolidae
- Hirundinidae
- Phylloscopidae
- Aegithalidae
- Sylviidae
- Regulidae
- Sittidae
- Certhiidae
- Polioptilidae
- Troglodytidae
- Sturnidae
- Mimidae
- Turdidae
- Muscicapidae
- Bombycillidae
- Ptiliogonatidae
- Prunellidae
- Passeridae
- Motacillidae
- Fringillidae
- Emberizidae
- Passerellidae
- Icteridae
- Parulidae
- Cardinalidae