ВУЗ:
Составители:
Рубрика:
Notes:
chickadee американская черноголовая синица
caterpillar гусеница
nestling птенец
clutch кладка яиц
Text 17
CAN DUCKS SWIM WITHOUT BEING TAUGHT?
Like all young waterfowl, ducks don't have to be taught how to swim. A
baby duck knows how to swim as soon as it hatches from the egg. The mother
duck leads the ducklings to the water as soon as they can travel. It will take a
duckling six or more weeks before learning to fly. During their first few months,
the young ducklings live on water insects, grasses and other kinds of plant life.
Ducks and most other water birds have a Special way to keep dry. They use their
bills to spread waterproofing oil over their feathers. The oil comes from a gland
near their tails.
Notes:
duck утка
waterfow водяная
Text 18
HOW DO CHICKENS CHEW THEIR FOOD?
Chickens, like all other birds, have an unusual way of chewing their food. The
work of chewing is done by the gizzard, the part of the bird's stomach where the
food is ground up. Since birds have no teeth, they must swallow their food whole.
After food is swallowed, it passes into a space called a "crop" in the chicken’s
gullet, or throat. There the food is stored and softened. The food then passes into
the gizzard, where it is crushed by the grinding action of the tough gizzard lining,
often with the aid of gravel and grit that the chicken has swallowed.
Notes:
chicken цыпленок; (амер.) курица
chew жевать
gizzard второй желудок (у птиц)
crop зоб (у птиц
)
gullet пищевод; глотка
55
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