INDEX TO KEY TO EGGS. 



PAGE 



GROUP i. White eggs (unmarked) .-* 719 



Section i. Nest on branches of trees or bushes 719 



Part i. Eggs less than .60 inch long 719 



Part 2. Eggs from .60 to ..85 inches long 719 



Part 3. Eggs between .90 and 1.25 inches long 719 



Part 4. Eggs more than 1.50 inches long 719 



Section 2. Nest in hole in tree, stump, or post .' 720 



Part i. Eggs less than .80 inch long 720 



Part 2. Eggs from .80 to .98 inches long: 720 



Part 3. Eggs from .98 to 1.25 inches long 720 



Part 4 . Eggs from 1.25 to 1.75 inches long 721 



Part 5. Eggs more than 1.75 inches long 721 



Section 3. Nest about dwellings, barns, and out-buildings 721 



Section 4. Nest in open fields on ground or in bunch of grass 721 



Part i. Eggs less than 1.50 inches long 721 



Part 2. Eggs more than 1.50 inches long 722 



Section 5. Nest in hole in bank 722 



Part i . Eggs less than i inch long 722 



Part 2 . Eggs more than i inch long 722 



Section 6. Nest in swampy places, in reeds or grass, on ground, 



or on floating vegetation 722 



Part i. Eggs less than i inch long 722 



Part 2. Eggs between i and 1.50 inches long 722 



Part 3. Eggs more than 1.50 inches long 723 



GROUP 2. 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. Nest on branches of trees or bushes 725 



Section 2. Nest in hole in tree, stump, or post 725 



Section 3. Nest about dwellings, and barns, and buildings 726 



Section 4. Nest in open fields, on ground, or in bunch of grass 726 



Section 5. Nest on ground, in woods, in dry places 726 



Section 6. Nest in swampy places, in reeds or grass, on ground, or 



on floating vegetation 726 



716 





