3io FARM AND SCHOOL PROBLEMS. 



young at the time when insects are most numerous, and that the 

 average consumption of weed seeds and insects in 3 pounds. 

 Find the approximate number of meadowlarks and the number ot 

 pounds of weed seeds and insects eaten? 



7. If there are on an average 20 Bob-whites per square mile in Ohio 

 and their value to agriculture is 25c per head, what is their total 

 value to the farmers of Ohio? 



8. If there were one Bob-white per acre in your state, what would 

 be the total number, and what would be their total value to agri- 

 culture, estimated at the very low sum of lOc per bird? 



Migratory Movements of Birds. 



The following list gives dates of the extreme time limits for 

 the occurrence of the species that are found in the vicinity of 

 Wooster, Ohio. 



This will serve as an index for those who wish to note the 

 appearance and time of leaving of birds for a long distance East 

 and \Yest of Wooster on this parallel, North Latitude. 



SOME OHIO BIRDS. 



1. Green Heron April 18-Oct. 1 



2. Solitary Sandpiper Aug. 13-Oct. 10 



3. Yellow-billed Cuckoo May 7-Oct. 13 



4. Black-billed Cuckoo Sept. 15 and 24 



5. Whip-poor-will April 24- Aug. 27 



6. Nighthawk May 3-Sept. 26 



7. Chimney Swift April-Oct. 14 



8. Hummingbird May 7-Oct. 6 



9. Phoebe Mar. 12-Oct. 9 



10. Wood Pewee May 4-Sept. 26 



11. Least Flycatcher May 1-Sept. 13 



12. Cowbird Mar. 12-Nov. 1 



13. Baltimore Oriole April 24-Sept. 10 



14. Purple Finch Apr. 28-May 8 and Oct. 11- 



Nov. 16 



15. Grasshopper Sparrow Apr. 14- Aug. 13 



16. White-crowned Sparrow Apr. 30-June 7 and Oct. 7-14 



17. White-throated Sparrow. Apr. 14-May 23 and Sept. 24- 



Nov. 5 



18. Chipping Sparrow Mar. 19-Oct. 23 



19. Field Sparrow Mar. 14-Oct. 22 



20. Junco Sept. 24-May 1 



21. Swamp Sparrow April 28 and Feb. 15 



