31.   Other signs that genetic correlation may not be the whole story come from studies comparing the change in male and female coloration in various bird species over evolutionary time.

32.   Redwoods also provide crucial habitat for rare bird species, Standiford said, like marbled murrelets and spotted owls.

33.   Scientists will go into the areas of known and suspected viral transmission to determine the density and distribution of mosquitoes there and to collect a variety of bird species.

34.   Scores of spectacular bird species are on display.

35.   That pact was worked out among the United States, Canada, Mexico and several other countries to protect hundreds of bird species that cross international boundaries.

36.   The agents are trying to determine whether the collection contains feathers and teeth from endangered bird species, an agency spokeswoman says.

37.   The documentation of bird species trounced by humans goes well beyond the deliberate records of the recent historical past so well gathered by Fuller.

38.   The FWS agents are trying to determine whether the collection contains feathers and teeth from endangered bird species, an agency spokeswoman says.

39.   The oasis attracts an impressive number of bird species, including hummingbirds clustering around feeders at the visitors center.

40.   The park features several habitats, including a Floral Colour Garden, a woodland trail and a wetland area that attracts many bird species.

n. + species >>共 239
plant 11.94%
bird 9.23%
fish 7.73%
tree 4.21%
whale 2.85%
oxygen 2.44%
wildlife 2.44%
prey 2.31%
dinosaur 1.76%
ant 1.63%
bird + n. >>共 379
flu 10.01%
species 5.28%
sanctuary 3.80%
song 3.72%
cage 3.18%
population 3.10%
life 3.03%
virus 2.95%
dropping 1.86%
scare 1.86%
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