I Had To Have A Double Take,

when I saw this 'hummingbird',

 as it was not humming and in fact is not a bird at all, it is a legume, native to northern Australia, known as the “green bird flower” (Crotalaria cunninghamii), for a very good reason – its green flowers look like tiny hummingbirds with their sharp beak attached to the plant’s stem, above photograph indie1/Wikimedia Commons (CC BY-SA 3.0),

 a photo of two Crotalaria cunninghamii flowers recently went viral on Reddit, leaving many users scratching their heads and asking whether their uncanny resemblance to hummingbirds was an adaptive evolutionary development or a simple illusion, apparently, the latter would be the most likely answer, above photograph by Fae N'Tien,

 above photograph by Flores de Todos los Rincones, there are no hummingbirds in northern Australia, and apart from humans, it is unlikely that any creature would mistake these flowers for real hummingbirds, so the shape does not result in any kind of benefit to the plant, plus, the flowers only resemble hummingbirds when viewed from a certain side-angle, it is purely a case of simulacrum, seeing shapes and forms that look like something that they are clearly not, 

and thanks to Seb El Sancho, for finding this postcard, how strange that the seeds should look so much like a bird that never occurs on the continent, although it should be said that sunbirds do, but, they are not closely related to hummingbirds, although they look similar, hummingbirds hum and hover, sunbirds do not hover, they have to perch to feed.