INDEX TO KEY TO EGGS. 



Group i. White eggs (unmarked) 719 



Nest on branches of trees or bushes 719 



Eggs less than .60 inch long 719 



Eggs from .60 to .85 inches long 719 



Eggs between .90 and 1.25 inches long 719 



Eggs more than x.50 inches long 719 



Nest in hole in tree, stump, or post 720 



Eggs less than .80 inch long 720 



Eggs from .80 to .98 inches long 720 



Eggs from .98 to 1.25 inches long , 720 



Eggs from 1.25 to 1.75. inches long 721 



Eggs more than 1.75 inches long 721 



Nest about dwellings, bams, and out-buildings 721 



Nest in open fields on ground or in bunch of grass 721 



Eggs less than 1.50 inches long 721 



Eggs more than 1.50 inches long 722 



Nest in hole in bank 722 



Eggs less than i inch long 722 



Eggs more than i inch long 722 



Nest in swampy places, in reeds or grass, on ground, 



or on floating vegetation 722 



Eggs less than i inch long 722 



Eggs between i and 1.50 inches long 722 



Eggs more than i..5o inches long 723 



Group i. Eggs blue or greenish blue (unmarked) 723 



Section i. Nest on branches of trees or bushes 723 



Part I. Eggs less than .76 inch long 723 



Part 2. Eggs from .77 to i inch long 723 



Part 3. Eggs from i inch to 1.35 inches long 723 



Part 4. Eggs more than 1.35 inches long 724 



Section 2. Nest in hole in tree, stump, or post 724 



Section 3. Nest about dwellings and barns 724 



Section 4. Nest in open fields, on ground, or in bunch of grass 724 



Section 5. Nest in swampy places, in reeds, or grass, on ground, or 



on floating vegetation 725 



Group 3. Eggs not white or blue (unmarked) 725 



Section i. 

 Part 1 

 Part 2 

 Part 3 

 Part 4 



Section 2. 

 Part I 

 Part 2 

 Part 3 

 Part 4 

 Part s 



Section 3. 



Section 4. 

 Part I. 

 Part 2. 



Section 5. 

 Part 1. 

 Part 2. 



Section 6. 



Part i. 

 Part 2. 

 Part 3. 



Section 

 Section 

 Section 

 Section 

 Section 

 Section 



Nest on branches of trees or bushes 725 



Nest in hole in tree, stump, or post 725 



Nest about dwellings, and bams, and buildings 726 



Nest in open fields, on ground, or in bunch of grass 726 



Nest on ground, in woods, in dry places 726 



Nest in swampy places, in reeds or grass, on ground, or 



on floating vegetation 726 



716 



