White-headed sentence example

white-headed
  • Small numbers of White-headed ducks were found breeding at 11 wetlands.
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  • The two species hybridize and hybrids are fertile, causing genetic introgression of Ruddy Duck genes in the wild population of White-headed Ducks.
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  • Contents Featured Bird - in the first of a regular series we take a look at the White-headed Duck.
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  • Without the presence of Ruddy ducks, the White-headed duck population in Spain is thought to be self-sustaining.
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  • Then a cry from Helen and we all scrambled to see a fine White-headed Vulture standing aloof from the rest.
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