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



Eggs, 3 to 4. Size, about .81 x .56; white, marked sparsely with 

 ilots of (hirk brown. Bird, throat and under parts, mostly white; crown, 

 slaty; back, olive green. Vireosylva olivaceii. 



Red-eyed Vireo, 



Eggs, 4 to 6. Size, about .92 x .61; dull white, sparsely scrawled 



and marked with dark brown or blackish. Bird, plumage showing 



more or less yellow. Icterus galbula. 



Baltimore Oriole. 

 Eggs, 3 to 5. Size, about .95 x .73; clear white, marked with dark 

 brown and black. Bird, under parts, white; upper parts, dark. 



Tyrannus tyrannus. 



Kingbird. 



Eggs, 3 to 6. Size, about 1.16 x .82; pale bluishor greenish, marked 



and scrawled with dark brown and black. Quiscalus quisciila ccnens. 



Bronzed Grackle. 



SECTION 2. NEST IN HOLE IN TREE, STUMP OR POST. 



•Eggs, 5 to 8. Size, about .60 x .48 ; white, marked with pale brown. 



Penthestes atricapillus. 



Chickadee. 



Eggs, 6 to 8. Size, about .64 x .49; vinaceous, speckled with pale 



brown. Troglodytes aedon (or parkmanii) . 



House Wren. 



SECTION 3. NEST ABOUT DWELLINGS AND BARNS. 



Eggs, 6 to 8. Size, about .64 x .49; vinaceous or pale lilac-brown, 

 speckled all over with pale brown. 



Troglodytes aedon (or parkmanii) . 

 House Wren. 



SECTION 4. NEST IN OPEN FIELDS ON GROUND OR 

 IN BUNCH OF GRASS. 



(Eggs in this section may usually be distinguished by size.) 

 Eggs, 3 to 5. Size, about .70X.51; pale bluish white, marked with 

 rufous brown. Spizella pusilla. 



Field Sparrow. 

 Eggs, 4 to 5. Size, about .73X.56; speckled and spotted with red- 

 dish brown, occasionally showing small markings of black and dull 

 lavender. Coturniculus savannarum australis. 



Grasshopper Sparrow. Yellow-winged Sparrow. 

 Eggs, 4 to 5. Size, about .78 x 60; white or bluish white, thickly 

 marked with rufous brown. Bird, breast striped with brown. 



Melospiza melodia. 

 Song Sparrow. 



