1892.
April. 
Mass.
Concord
31. Sayornis fuscus. - April 2: 1 - 3: 2 - 4: 5 - 5: 6 - 6: 2 - 8: 2 - 9: 3 [female] - 11 [male] - [female]
12 [male - female] - 13: 3 - 14: 3 - 15: 3 - 17: 2 - 18: 2 - 19: 1 - 20: 1 - 21: 1 - 22: 2 - 24: 1 - 28: 1 - 29: 1 - 30: 1
32. Pandion carolinensis. - April 5: 1
33. Dendroica pinus: April 6: 1 (apple orchard) - 7: 4 - 14: 1 - 15: 1 - 17: 1 - 19: 1
20: 2 - 21: 3 - 22: 2 - 24: 3 - 25: 1 - 29: 1 - 30: 1
34. Spizella socialis. - April 7: 1 - 8: 2 - 9: 1 - 12: 1 - 13: 1 - 14: 1 - 15: 1 - 17: 1 - 19: 1
20: 2 - 21: 3 - 22: 2 - 24: 3 - 25: 1 - 29: 1 - 30: 1
35. Passerella iliaca. - April 6: 4 - 7: 1 - 9: 1 - 13: 2 - 15: 1 - 17: 1
36. Bonasa umbella. - April 6: 1 - 18: 1 - 24: 1 - 25: 2
37. Hirundo [?]. - April 8: 1 - 18: 1 - 20: 1 - 24: 1 - 29: 20 - 30: 2
38. Anas obscura. - April 7: 8 - 17: 4 - 28: 1 (Gr. Med.).
39. Circus hudsonicus. - April 7: ad [male] - 13: ad [male] - 14: ad [male] [female] - 15: ad [male] [female] - 16: ad [male]
18: ad [male] - 19: ad [male] [female] - 20: ad [male] [female] - 24 [male] (diving) - 27: ad [female] - 29: 3 ad [male] 1 [female].
40. Buteo lineatus. - April 13: [male] - 21: [male] - [female] - 29: [male] - [female]
41. Botaurus minor. - April 13: 1 - 15: 2 - 20: 1 - 28: 1 - 29: 1
42. Gallinago delicata. - April 14: 1 - 15: 1 - 20: 1
43. Turdus pallasii. - April 15: 1 - 17: 1 - 19: 1 - 23: 1 - 24: 2 - 25: 3 (1) - 26: 5
44. Accipiter velox. - April 17: ad [female] - 30: 1 [female]
45. Nycteardia g. nivaea - April 17: 2 - 20: 3