Hummingbirds: hovering on the brink of extinction

I have been fascinated by hummingbirds ever since I was given a pack of wild animal cards in hospital while my tonsils were removed and fell in love with Heliothrix aurita, a speck of fire and jade. And also wine-red Topaza pella, perched in a jungle whisking a crimson tail.

I still have those cards. Their pictures seem crude now, but when I was eight I was enraptured. The Aztecs said the Earth’s first flower was fathered by the god of poetry in the shape of a hummingbird; and everything about hummingbirds seems tailor-made for a poet.

Birds see ultraviolet light, and female hummingbirds have a taste for iridescence, so males have turned themselves into flying jewels. Their metallic sheens, glancing as soap bubbles, are reflected in equally iridescent names for which taxonomists have plundered all the shimmer in the lexicon.

There are more than 300 species: words such as emerald, copper, bronze, gold, fire, sapphire, lazuline, emerald and sunbeam spill like Aladdin’s treasure through the list: amethyst woodstar, blue-headed sapphire, Brazilian ruby, buff-winged starfrontlet – you marvel not only at nature’s capacity for spangly variation but the human urge to match it in language.

Hummingbird nests – the size of a nutshell, spun out of plant down, covered with lichen, bound by spider’s silk – are works of art straight out of A Midsummer Night’s Dream. Hummingbird tongues, almost transparent, are liquid-trapping miracles of bioengineering that change shape as they flick in and out of the nectar. Their tips are forked: the V’s inside edges have feathery tufts that draw in nectar by capillary action. When hummingbirds sleep they fall into hibernation-like torpor. Metabolism drops, temperature zooms to near-hypothermic levels and breathing slows so drastically that if you find a sleeping hummingbird you think it’s dead. Which, in the Peruvian Andes, makes it a symbol of resurrection.

Read more at The Telegraph