 The weight of males is 11.4–16.0 grams, females have a narrower range of 12.5–13.6 grams.Using a sample of thirty males and fifteen females, the average length in of the wing is 56.2 mm, bill 11.8 mm, tail 43.7 mm, and tarsus 17.0 mm for the male; the female has an average length of wing at 56.4 mm, bill 11.6 mm, tail 42.4 mm, and tarsus 17.4 mm.The juvenile plumage resembles the adult, without the deep crimson ear patch and spotted belly.