Squawk. Vroom. What's the fastest bird in the world?
That's not the lead in to a joke, by the way. And the answer is not the swift, for that doesn't even make the top five, despite its impressive maximum airspeed of 100 miles per hour (or 160km/h if you prefer).
The peregrine has a body length between 12 and 24 inches (34 to 58cm) and a wingspan from 29 to 47 inches (74 to 120cm). The male and female have similar markings and plumage but, as with many birds of prey, the peregrine displays marked sexual dimorphism in size, the female being up to 30% larger and heavier than the male. Peregrines can live for up to twenty years in the wild, though mortality rates are high in the first few years (50 to 75% of birds don't make it to two years old).
Just for the sake of completeness, the other four birds that have recorded a faster airspeed than the swift are the saker falcon, golden eagle, grey-headed albatross and the gyrfalcon. But bear in mind that all of the above achieve that remarkable velocity while diving. The record for the fastest confirmed level flight by a bird is 69.3 mph (111.5 km/h) and that is held by the common swift.
When it comes to birdspeed , the accolade goes to the peregrine, a falcon which is capable of speeds in excess of an astonishing 240mph (or 385 km/h). That's faster than the quickest F1 racing car (233mph or 375 km/h) and only slightly slower than the WWII Hawker Hurricane, the first RAF plane to fly in excess of 300mph (480 km/h). Some physicists have calculated that theoretically the peregrine might be capable of even higher speeds at altitude, of up to 380mph (608 km/h). That's simply mind-boggling.
As well as being the fastest bird, the peregrine (the falcon part is optional) is also the quickest of all animals on the planet. No wonder then that it was revered by the Ancient Egyptians as the god Horus.
The peregrine (Falco peregrinus) is a raptor, or bird of prey. It is the second most widespread bird species on earth, being found everywhere except in the polar extremities and New Zealand. Before you ask, the most widespread bird is the pigeon - which is good news for the peregrine, because its diet consists almost exclusively of birds, and pigeon makes up the majority of its food, though it will also eat any other medium-sized birds it can get its claws on (waterfowl, game birds, seabirds, songbirds, waders, the lot).
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| a peregrine soaring |
As mentioned, the peregrine subsists mainly on other birds. It catches most of its prey on the wing, which is where its diving skills and incredible airspeed come in. It will hover above and then swoop. With a force of up to 25g acting on its little body, it's amazing it doesn't black out or get shredded by the buffeting air as it descends. It clips its prey in one wing, to minimise the force of impact.
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| a peregrine diving |
The fact that it remains intact is down to its incredible aerodynamic efficiency, its very powerful beak and the streamlined shape it maintains in the dive. Its nostrils are protected by small bony tubercles which guide the powerful airflow away from the intakes, enabling it to breathe more easily by reducing the change in air pressure. In addition, it uses a third eyelid to spread tears and clear debris from the eyes while maintaining vision. And the peregrine has a flicker fusion frequency of 129 Hz (cycles per second), which is very fast for a bird of its size, and much faster than mammals. All of which makes it the perfect hunting bird. And it is no coincidence that the most modern American stealth fighter plane mimics the peregrine's aerodynamic lines. The B-2 Spirit has an airspeed of 628mph (1010 km/h)
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| American B-2 'Spirit' stealth fighter |
If you want to read a poem about a falcon, I refer you to Gerard Manley Hopkins' brilliant 'The Windhover', though the "dapple-dawn-drawn Falcon" of his poem was actually a kestrel.
My new poem takes an altogether different approach to the week's theme, and it comes with the usual caveat about it being a first draft/work in progress. It's a narrative poem based on a true event, the night I didn't get to see Josef K's London debut at a Camden music venue...
Birdspeed
Dim lights, black walls, a DJ in thrall
to the high water mark of sixties jangle
as prologue to the new sound in town.
There's a buzz in the club for these four
Scottish lads and I stand, beer in hand,
when one of their tribe, by the sound of
her brogue, engages me in conversation
about how your feet stick to this floor
and do I have their album? do I like it?
She tells me how great they are live, more
potent in person, loud, raw and sexy, and
ready to conquer all. I might smile at her
monologue, don't recall later if I gave
any other sign of encouragement, and
suddenly I'm pinned to the wall as she
presses herself hard against me, hands
either side of my face, kissing with her
tongue probing my mouth. I'm shocked.
Is this Scottish for seduction? She's not
unattractive, but that's not the point. I'm
locked in an embrace with someone I've
only just met, don't even know her name
yet and it feels presumptuous, predatory,
feral, as if I've been swooped on from a
great height by a bright-eyed bird of prey
and it's not at all a turn on, I can tell you.
I squirm out of her clutches, mutter about
just needing to do something, head for the
gents for respite, buy time buying condoms.
She'll have eyes on the door, for sure, and
though |I've never done it before, climbing
out the window seems the best bet, a tight
fit, but I'm out in the yard breathing hard
in cold night air, then over a wall and slip
off into the safety of a Camden night, taste
of her Southern Comfort on my bruised lips.
Thanks for reading, S ;-)




























