726 Field Museum of Natural History — Zoology, Vol. IX. 



SECTION 3. NEST ABOUT DWELLINGS AND BARNS. 



Eggs, 6 to 8. Size, about .64 x .49; occasionally pale vinaceous or 

 pinkish without marking, but usually thickly speckled. 



Troglodytes acdon (or parkmanii) . 

 House Wren. 



SECTION 4. NEST IN OPEN FIELDS, ON GROUND OR 

 IN BUNCH OF GRASS. 



Eggs, 10 to 14. Size, about 1.70x1.26. Color, cream buff or pale 

 olive buff. Tympanuchus americanus. 



Prairie Hen. 



SECTION 5. NEST ON GROUND IN WOODS IN DRY 



PLACES. 



Eggs, 8 to 14. Size, about 1.51 x 1.16. Color, pale buff or buffy 

 white. Bonasa umbellus. 



Ruffed Grouse. 



SECTION 6. NEST IN SWAMPY PLACES, IN REEDS OR 

 GRASS, ON GROUND OR ON FLOATING VEGETATION. 



Eggs, 6 to 12. Size, about 1.85 x 1.32; pale buff or creamy buff. 



Querquedula discors. 



Blue-winged Teal. 



Eggs, 3 to 5. Size, about 1.90 x 1.44; grayish olive or olive drab. 



Botaurus Icntiginosus. 

 American Bittern. 



GROUP 4. EGGS SPOTTED OR MARKED CHIEFLY 

 AT LARGER END. 



SECTION I. NEST IN BRANCHES OF TREES OR 



BUSHES. 



PART I. EGGS LESS THAN .75 IN. LONG. 



Eggs, 4 to 5. Size, about .63 x .50; dull white, marked with light 

 brown. Bird, sides o£ body yellow, outer tail feathers pale yellow, 

 broadly tipped with brown. (Female.) Setophaga ruticilla. 



Redstart. 



