APPENDIX. 447 



C. Color, brown, drab, or buff, 

 (a.) On the ground, except the last, and sometimes "3." 



1. Av. 1.65X1.25. Pale drab buff to rich reddish buff.* Partridge. § 30, III. 

 (2.) Av. 1.G5X1.35. Brownish drab or paler.* JS^est where dry. Heath Hen. §30,11. 



3, Av. 1.90X1.50. Drab. Birds usually colonial in swamps. Bittern.* 



4. <: .72X.55. Usually marked. Nest among reeds. L.-b. Marsh Wren. § 7, II, B. 



(b.) In the holes of trees, or rarely in a nest made in a fork. 

 1. About 2.00X1.50. Yellowish white, or very pale drab. Summer Duck. 



For § II of this Key, see the next page. 



* Often somewhat marked. * It is more than doubtful if the Bittern 



ever breeds in colonies. — W. B. 



