![]() ![]() There’s a difference between teal in terms of calls and calling. Better yet, wait until the birds have landed, entice them closer with the promise of company using the whine, then practice the art of jump-shooting. Then, when they’re within 100 yards or so, the whine, the aforementioned peep-whistle of peet - w-o-o-O-O-I-T, or simply the rising whistle portion of the call can convince them to light. Sometimes the high-pitched creeeeek - creeeeek in-flight call of the wood duck will get a flock’s attention. Coincidence? Perhaps, but that one-in-a-million occasion was enough to convince me that when a flying wood duck wants to listen, he will. However, I did on one occasion see a small flock change course and return to a timbered pothole where a cousin of mine, wood duck call in hand, had just called to them in their peet - w-o-o-O-O-I-T rising whistle. It’s been my experience that 99% of the woody population will ignore a wood duck call. ![]() I’d have to branch out and come to grips with the fact that some ducks don’t quack. From that point on, I decided if I wanted to attract more ducks to my decoy spread, I’d have to learn to speak their language. Rolling trills and odd guttural groans audibles seemingly out of place in the duck marsh, but there they were. When I moved to Washington state in ’93, I learned there was more to life than just quacks and quacking. When my waterfowling career began in 1974, I knew only mallard duck calls and the traditional quack in its three or four variations. This material may not be published, broadcast, rewritten or redistributed.Beyond the quack: Learn the different duck sounds of common speciesīy M.D. Original article on Live Science.Ĭopyright 2014 LiveScience, a TechMediaNetwork company. "It shows killing is not necessary."įollow Tanya Lewis on Twitter and Google+. The ability to track minke whales acoustically also offers an alternative research method to controversial Japanese whaling practices, Risch said. Researchers could put out buoys with microphones during the summer, and later retrieve them to learn about the whales' activity in colder months. The recordings will be especially useful in tracking these animals in winter, when visual surveys are impossible due to weather conditions. "The fantastic thing about acoustics is you can go back in time," Risch said. Now that minke whales have been identified as the source of the mysterious sounds in ocean recordings, researchers can use those recordings to glean information about the distribution, abundance and behavior of these vocal animals. ![]() The fact that the sounds were heard off both Antarctica and Western Australia suggests that some whales remain in Antarctica year round, while others migrate to lower latitudes, as other whales do, the researchers said. For example, male humpback whales, unlike females, perform complex songs during their mating season. The researchers don't know, either, whether only males make the sounds or females also partake. The whales may use the sounds for breeding or navigation, Risch speculated. What the sounds mean in whale-speak remains a mystery to scientists. Years' worth of audio recordings will now provide a wealth of information on the abundance, distribution and behavior of these elusive cetaceans, the researchers said in their study, detailed today (April 22) in the journal Biology Letters. It turns out, Antarctic minke whales actually produce the duck-like sound, Risch and her colleagues have found. As time went on, people suggested a fish may be making the sound, but it seemed too loud, Risch told Live Science. Because the sound was so repetitive, scientists first thought it might be human-made, possibly coming from submarines. "In the beginning, no one really knew what it was," said Denise Risch, a marine biologist at NOAA Northeast Fisheries Science Center in Woods Hole, Mass. Submarine crews first heard the oceanic quack, which consists of a series of repetitive, low-pitched pulsing sounds, in the 1960s. A mysterious duck-like sound recorded in the ocean around Antarctica has baffled scientists for decades, but the source of the sound has finally been found, researchers say.įor more than 50 years, researchers have recorded the so-called "bio-duck" sound in the Southern Ocean. ![]()
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