1. Reproductive importance of dominant male greater prairie chickens;Ballard;Auk,1974
2. Intraspecific variation in passerine bird songs;Borror;Wilson Bull,1961
3. Acoustic behavior of birds;Bremond,1963
4. Courtship and mating behavior of the sharp-tailed grouse (Pedioecetes phasianellus jamesi, Lincoln);Evans,1961
5. Comparability of some social displays of grouse;Hamerstrom,1960