Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Your THIS PAGE IS FROM JANUARY’S BBC WILDLIFE MAGAZINE OUT NOW! WILD challenge PELLETS Use pellets to learn which birds are in the area. How many can you spot this month? Share your sightings at www.discover wildlife.com/forum Blackbird Size 1–2cm Tightly packed, small, short, ovalshaped; full of insect body parts and fruit pips. Lawns and feeding sites. Magpie Size 3.5–4.5cm Elongated and pointed; mix of seeds, bits of grass, insect wingcases, bones and fur. Lawns and short grassland. Sparrowhawk Size 5–6cm Small – round at one end, pointed at the other; lots of small feathers. Below favourite plucking perches. P ellets are often confused with mammal droppings, or scats, but are in fact regurgitated undigested food left by birds. They are usually found where birds have been feeding, roosting or nesting, and though wet and soft when fresh, soon dry out and harden. All birds produce pellets, depending on what they have been eating, though some are more obvious than others. The ones found most frequently are those from raptors, which feed on mammals and birds – the fur, bones and feathers remain undigested. In other bird species, fish bones and scales, seeds, plant matter, shells and insect remains may all be packaged up into a single pellet. Some large seabirds, such as gulls and skuas, swallow petrels, auks and rodents whole – subsequent pellets contain almost intact bones and wings. Buy our January issue today for a feature about garden bird behaviour. Illustrations by Mike Langman b Peregrine Size 2–6cm Large, thick, round; small body feathers, sometimes bones. Below favoured perches on buildings. Rook Size 3–4cm Fibrous; vegetable matter, seeds, insect remains. Below rookeries and in fields where the birds feed. Herring gull Size 2.5–5cm Coarse, fibrous, loose, yellow-brown; grass, insect parts, grain, bones, skulls, fish bones, scales. Near nests. Tawny owl Size 2–5cm Medium-sized; fur and bones of small mammals; birds’ skulls and bones. Below roost and nest sites in trees. Robin Size 1cm Raisin-sized; insects, woodlice, seeds, centipede parts. Close to nests or below favourite singing perches. Kestrel Size 2–4cm Small; fur, small mammal bones and (on heaths) reptile scales and bones. Below nestboxes and holes in trees. CAN YOU FIND ALL TWELVE? How many of these pellets can you spot? You can post your pictures on our forum and we’ll feature some of the best in the magazine: www.discoverwildlife.com NEXT MONTH’S WILD CHALLENGE: ANIMAL DROPPINGS Great black-backed gull Size 3.5–5.5cm Large, loose, fibrous; plant, insect, fish and mammal remains. Eats small seabirds and mammals whole. Buzzard Size 4.5–6cm Large; fur and feathers but few bones as food is picked apart; under trees and telegraph poles and in fields. Redshank Size 1–2cm Small, moist, loose; crustaceans, seeds, grit, worms, shell fragments. Breakwaters, seawalls, mudflats. TRY THE BRILLIANT Buy the latest issue to discover even more about wildlife AMAZING NEW PHOTO FEATURES IMPROVE YOUR NATURALIST SKILLS THE BEST BRITISH WILDLIFE LATEST CONSERVATION NEWS AND SUBSCRIBE TODAY! 5 ISSUES FOR £5 SPECIAL TRIAL OFFER Try your first 5 issues for just £5 when you subscribe to BBC Wildlife Magazine. Visit www.buysubscriptions.com/wildlife today and enter the code WLP395 Offer ends on 20 January 2015