A little, vivid red bird that is easily identifiable due to its vivid colour and lively temperament!

The red warbler, or Cardellina rubra, is a little passerine that ranges in length from 12.5 to 13.5 cm (4.9 to 5.3 in) and weighs 7.6 to 8.7 g (0.27 to 0.31 oz). Adult birds have red overall, and depending on the subspecies, each side of their head has an auricular patch that is either white or dark grey. The tail and wings have a pinkish-red border and are a shade deeper, dusky red. The beak is pinkish-gray with a black tip, while the legs are a drab reddish-brown colour. Iris colour ranges from dark brown to black.

The female’s plumage tends to be a little duller or more orange-tinged, but overall there is not much difference between the sexes.

August marks the entire moult and separation of adult couples following the mating season.

This species is native to Mexico and may be found all the way from southern Hidalgo to southern Chihuahua.