gadwalls造句

• Mallards, pintails, teal, gadwalls, widgeons and shovelers are dabblers.
• Record numbers of canvasbacks, redheads and gadwalls.
• Clusters of big ducks _ the mallards, pintails and gadwalls _ passed overhead.
• The ponds often host such waterbirds as American widgeon, gadwalls, northern shovelers, and wood ducks.
• Some mallards, gadwalls, and cinnamon teal stay through the spring and summer and breed on the refuge.
• Second, gadwalls and falcated ducks could have diverged so recently that mtDNA lineages have not sorted to reciprocal monophyly.
• First, analyses of the three loci combined show that some introgression is necessary to explain current genetic diversity in gadwalls.
• He alleged that the ducks killed for the bash included gadwalls, shovellers, wigeons, pochards and pintails _ all protected species in India.
• There are nationally important numbers of goosanders, wigeons and gadwalls in winter, and banded demoiselle damselflies nest on nettles along the river bank.
• Gadwalls and redheads were exceptions to this success story, down 14 and 3 percent, respectively, and another species, the black duck, continued its decline.
• The site is used for waterskiing but the activity is prohibited between 1 October-31 March, which is the period when the gadwalls use it for feeding.
• The refuge also provides important breeding habitat for Swainson's hawks, tricolored blackbirds, marsh wrens, mallards, gadwalls, cinnamon teal, and burrowing owls.
• Birds are various : common goldeneyes, mallards, gadwalls, northern pintails, anas, ruddy shelducks, charadrii, northern lapwings, common sandpipers, green sandpipers.
• Some duck species, like mallards, pintails, teal, gadwalls, widgeons and shovelers, feed in shallow water and build their nests on dry uplands near the water.
• Some of the birds that migrate to Indian wetlands in winter season are Siberian cranes, greater flamingos, ruffs, white wagtails, rosy pelicans, spotted sandpipers, starlings, and gadwalls.
• At present, he reports strictly resident populations of birds _ " mostly mallards, a few gadwalls and ruddy ducks and a ton of coots " _ and no migratory movement at all.
• W . G . Anderson, a local resident stated in 1926 that growing up on Teraina and Tabueran around the turn of the century, he had never encountered a native population of gadwalls on Teraina.
• The islands are filled with wild geese and ducks throughout the marshlands . black ducks, gadwalls, egrets, osprey, and the boat-tailed grackle can all be found in and around Hoopers Island.
• Waves of ducks _ 45 million mallards, pintails, gadwalls and teals _ will rise out of ponds and sloughs next month and fly over the heads of assembled hunters and birdwatchers who are flocking to the state and transforming tourism here.
• In a study that was conducted, there were tested two hypotheses that could explain mitochondrial paraphyly of Holarctic gadwalls ( " Anas strepera " ) with respect to Asian falcated ducks ( " A . falcata " ).