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Hummingbird Feathers Don’t Make Any Sense

science side of tumblr can u explain this????

their feathers are iridescent! there is a layer of tiny air bubbles on the feather that reflect some light, letting some reach through the air bubble and reflect off the inner surface. the light must hit the air bubbles in a precise way for this to happen, which is why for example when the bird turns its head away from the light, the iridescent look goes away.

ainawgsd:

Jambu Fruit Dove

The jambu fruit dove (Ptilinopus jambu) is a smallish colorful fruit dove. It is a plump small-headed bird with soft feathers and very distinctive coloring including a white eye ring, orange bill and red legs. The adult male has a crimson face with a black chin, unmarked green upperparts and white underparts, with a pink patch on the breast and a chocolate brown undertail. The female differs from the male by having a dull purple face with a dark chin. The underparts are green with a white belly and cinnamon undertail. The immature jambu fruit dove resembles the female but has a green face. 

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