قراءة كتاب Ducks at a Distance: A Waterfowl Identification Guide
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Ducks at a Distance: A Waterfowl Identification Guide
tag="{http://www.w3.org/1999/xhtml}img"/> Typical Flock Pattern
Pintail
Length—26"
Weight—1¾ lbs.
HenThese ducks use all four flyways, but are most plentiful in the west.
They are extremely graceful and fast fliers, fond of zig-zagging from great heights before leveling off to land.
The long neck and tail make them appear longer than mallards, but in body size and weight they are smaller.
Hen Drake
Drake
Hen
HenThey are agile on land and often feed in grain fields. The drakes whistle; the hens have a coarse quack.
Typical Flock PatternGadwall
Length—21"
Weight—2 lbs.
HenGadwalls are most numerous in the Central Flyway, but not too common anywhere. They are often called "gray mallards" or "gray ducks." They are one of the earliest migrants, seldom facing cold weather.
They are the only puddle ducks with a white speculum.
Hen Drake
Drake
Hen
HenSmall, compact flocks fly swiftly, usually in a direct line. Wingbeats are rapid.
Drakes whistle and kack-kack; hens quack like a mallard, but softer.
Typical Flock PatternWigeon
Length—21"
Weight—1¾ lbs.
HenThese are nervous birds, quick to take alarm. Their flight is fast, irregular, with many twists and turns. In a bunched flock, their movements have been compared to those of pigeons.
When open water is handy, wigeons often raft up offshore until late afternoon when they move to marshes and ponds to feed.
Drake
Drake
Hen
HenThe white belly and forewing are very showy in the air. Drakes whistle; hens have a loud kaow and a lower qua-awk.
Typical Flock PatternShoveler
Length—19½"
Weight—1½ lbs.
HenShovelers, 'spoonbills' to many, are early migrants, moving out at the first frost. The largest numbers are in the Central and Pacific flyways.
The usual flight is steady and direct. When startled, the small flocks twist and turn in the air like teal.
Hen Drake
Drake
Hen
HenThey are not highly regarded as table birds, because one third of
