REMOVE

1. birds (animals)
2. fields (land)
3. utility poles

WHAT

1. banks (landforms) (1)
2. barns (1)
3. black-and-white film (1)
4. buildings (structures) (1)
5. doors (1)
6. exterior views (1)
7. farmhouses (1)
8. farms (1)
9. farmyards (1)
10. fences (1)
11. forests (plant communitie … (1)
12. landscapes (representatio … (1)
13. plants (1)
14. porches (1)
15. roads (1)
16. sidewalks (1)
17. sky (1)
18. soil (1)
19. stairs (1)
20. trees (1)
21. Visual Works (hierarchy n … (1)
22. windows (1)
23. yards (areas) (1)

WHO

1. Campbell, Sandra L. Still (1)
2. Sandra L. Still Campbell; … (1)

WHEN

1. 1961 (1)
2. after 1961 (1)