TOEFL Reading: ETS-TOEFL阅读机经 - 62B5621J3353G3D1L$

Paragraphs 4 and 5 support all of the following statements about cliff swallows EXCEPT A. They feed primarily on bugs found in their nests. B. They sometimes live in groups of only a few birds. C. They sometimes locate good feeding sites by following other cliff swallows. D. They build their nests close to the nests of other cliff swallows.