From Xplor for Kids
August 2013 Issue

Jaws of Life

Publish Date

Aug 01, 2013

Birds use beaks to weave nests, groom feathers, fight attackers, and capture food. With so many uses, it isn’t surprising that beaks come in all shapes and sizes. To see for yourself, sneak a peek at this buffet of beaks.

  • Great blue herons wade slowly through shallow water. When the leggy, long-necked fishmunchers spot dinner … Splash! They jab their spear-like beaks into the drink. Herons usually trap prey between their beaks, but sometimes a heron uses its beak to actually spear a fish.
  • Pileated woodpecker and common yellowthroat: Noppadol Paothong august/september 2013 i 7 Northern shoveler: Jim Rathert A ruby-throated hummingbird’s whirring wings run on flower power. To refuel, hummers stick their skinny snoots deep in a blossom and use their long tongues to lick up the energy-rich nectar inside.
  • Pileated woodpeckers bang their sharp, burly beaks against trees. The holes they hammer out contain carpenter ants and other insects that hungry woodpeckers capture with their extra long tongues.
  • Common yellowthroats are itty-bitty birds that hop quickly through tangled vegetation. Along the way, they use their tweezer-like beaks to pluck insects off leaves and snap up spiders from hidey-holes in bark.
  • Comb-like ridges called lamellae (lah-mel-lay) line the edges of a northern shoveler’s beak. Lamellae work like a spaghetti strainer. When a shoveler scoops a mouthful of marsh water, the water flows out, but seeds and insects get trapped for the duck to munch.
  • A northern cardinal’s stout snout is made for cracking seeds. Grooves in the cardinal’s upper beak hold seeds steady while its sharp lower beak swings shut, crushing each seed’s tough shell. Birds don’t have teeth to chew food, so they swallow it whole. (Wouldn’t your mom be horrified ?) But big critters are tough for birds to choke down. Red-tailed hawks use their sharp, hooked beaks to shred squirrels and rabbits into bite-sized nuggets. The tips of a red crossbill’s upper and lower beaks don’t line up — they’re crossed. But this bird doesn’t need braces. Its beak works just fine. Crossbills wedge their freaky beaks into pine cones, using the crossed tips to pry the cones open and pluck out seeds.
  • A wilson’s snipe buries its beak in mud to slurp up wiggly worms and insects. The tip of the snipe’s super-sized schnoz can be opened while the rest of its beak stays closed. The tip is also super sensitive, helping the snipe feel hidden prey.
  • If a common merganser manages to get its beak around a minnow, the lucky duck doesn’t want di nner to swim away. To keep that from happening, a merganser’s beak has pointy, toothlike lamellae that are perfect for holding slippery fishies.
  • When an American white pelican wishes for fishes, it plunges its beak underwater like a dip net. With a single scoop, the bigbeaked bird gathers three gallons of water — and several unlucky fish. It tips its beak to drain the water and swallows any fish left behind.

 

Also in this issue

You Discover

With summer winding down and autumn gearing up, there’s plenty to discover outside in August and September.

Predator vs. Prey: Roadrunner vs. Collared Lizard

The struggle to survive isn't always a fair fight. Here's what separates nature's winners from its losers.

How To: Read a River

Floating an Ozark stream is tons of fun, but tipping your canoe can be a drag.

Shadow Cats

Although they’re common throughout Missouri, bobcats dwell in the shadows, all but invisible to most people.

Wild Jobs: Katydid Wrangler Rhett Hartman

Mizzou student Rhett Hartman wrangles katydids to get inside the minds of these singing insects.

Strange But True

Your guide to all the unusual, unique, and unbelievable stuff that goes on in nature.

This Issue's Staff:

David Besenger
Les Fortenberry
Karen Hudson
Regina Knauer
Noppadol Paothong
Marci Porter
Mark Raithel
Laura Scheuler
Matt Seek
Tim Smith
David Stonner
Nichole LeClair Terrill
Stephanie Thurber
Cliff White

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