Sentence:  noshow=1) are spread over the whole of America, where they represent the true flycatcher... The <WSD>tyrants</WSD> are bold and quarrelsome birds, particularly during the season of incubation. 
Meaning of the word marked with <WSD> tags:  The (pl=s), members of the family Tyrannidae, which often fight or drive off other birds which approach their nests.