Travel agents held about 73,300 jobs in 2012. Travel agents work in offices, where they spend much of their time on the phone and on the computer. In some cases, busy offices or call centers may be noisy and crowded.
Mallard ducks average around 20 to 26 in length and can weigh 2 to 3 lbs. The male is known as a drake and the female is called a hen; the flocks are called sords when they are in flight. They are common in North American, Europe and Asia. The ubiquitous mallard is capable of cross-breeding with many other species.
1 The standard duckâs quack is the sound of a female Mallard. Males donât quack; they make a quieter, rasping sound.  Mallards, like other ducks, shed all their flight feathers at the end of the breeding season and are flightless for 3â4 weeks.