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.l.G5X1.35. Brownish drab or paler." Nest 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, H, B. 



(6.) 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. 



