No. 38. 

 Tympanuchus americanns. 



Male. Head slightly crested ; on either side of neck a long 

 tuft of narrow feathers of uneven length, the longer ones black ; 



No. 38. Male (with neck-sacs inflated), and glimpse of Female. 



beneath each tuft a bare spot of loose yellowish skin which the 

 bird has the power of inflating. Most of the upper plumage barred 



