Ruby-crowned Kinglet
A tiny bird seeming overflow with energy, the Ruby-crowned Kinglet forages almost frantically through lower branches of shrubs and trees. Its habit of constantly flicking its wings is a key identification clue. Smaller than a warbler or chickadee, this plain green-gray bird has a white eyeing and a white bar on the wing. The male's brilliant ruby crown patch usually stays hidden.
They are tiny songbirds with relatively large heads, almost no neck, and thin tails, They have very small, thin, straight bills.
Both sexes :
Length : 3.5 - 4.3 in (9 - 11 cm)
Weight : 0.2 - 0.3 oz (5 - 10 g)
Wingspan : 6.3 - 7.1 in (16 - 18 cm)
--- allaboutbirds.org
Ruby-crowned Kinglet
A tiny bird seeming overflow with energy, the Ruby-crowned Kinglet forages almost frantically through lower branches of shrubs and trees. Its habit of constantly flicking its wings is a key identification clue. Smaller than a warbler or chickadee, this plain green-gray bird has a white eyeing and a white bar on the wing. The male's brilliant ruby crown patch usually stays hidden.
They are tiny songbirds with relatively large heads, almost no neck, and thin tails, They have very small, thin, straight bills.
Both sexes :
Length : 3.5 - 4.3 in (9 - 11 cm)
Weight : 0.2 - 0.3 oz (5 - 10 g)
Wingspan : 6.3 - 7.1 in (16 - 18 cm)
--- allaboutbirds.org