April, 1892.
Concord, Massachusetts.
1. Parus atricapillus. - April. 1.(2), 3.(2), #, 4.(2), #, 5.(6), 2#, 7.(2), 13.(1), #, 15.(2), 19.(1), 21.(1), 23.(1), #, 24.(2), 1, 25.(#), 26.(#), 28.(#), 29.(1), #, 30.(2), #.
2. Merula migratoria. - April. 1.(5), 1#, 3.(8), 2#, 4.(15), 2#, 5.#, 7.#, 8.(15), #, 9.#, 10., 11., 12., 13.(15), 14.(4), #, 15.(3), #, 17.(6), #, 18.(6), #, 20.(25), 21.(15), 22., 23., 24.(10), 25.(6), #, 26., 28., 29.(30)
3. Sialia sialis. - April. 1.(10), 2.(6), 3.(8), 4.(8), 5.(8), 6.(4), 7.(4), 8.(2), #, 9.(2 female) nest building, 11.(male, female), 12.(male, female), #, 13.(5), #, 14.(4), #, 15.(4), #, 18.(2), #, 19.(2), #,
20.(2), #, 21.(1), #, 23.(2), 24.(male, female), #, 26., 28., 29.
4. Melospiza fasciata. - April. 1.(15), 2.(4), 3.(20), 4.(25), 5.(50), 6.(15), 7.(25), 8.(20), 9., 11., 12., 13.(1), 14.(12), 15., 17., 18.(10), #, 19.(8), #, 20., 21., 24.(10), 25., 26., 28.(2), #, 29., 30.
5. Spizela monticola. - April. 1.(6), #, 3.(3), #, 4.(1), #, 5.(15), #, 6.(12), #, 7.(4), #, 8.(6), #, 17.(1), 18.(2), 19.(2).
6. Junco hyemalis. - April. 1.(3), 14, (#), 3.(2), 1, (1), 5.(1), 6.(3), 8.(6), #, 18.(2), 20.(2), 1.
7. Corvus americanus. - April. 1.(15), 3.(15), 4.(15), 5.(10), 6.(10), 8.(15), 9., 11., 12., 13.(10), 15.(2), 2, 17.(2), 19.(21), mig?, 20.(6), 21.(7), 22., 23.(4), 24., 26., 27., 28.(4), 29.(4), 30.(4).
8. Cyanocitta cristata. - April. 1.(2), 3.(2), #, 5.(2), #, 13.(3 female), 2, (2), 19.(1), 20., 21.(2), 24.(3), 25.(2), 26.(2), 27.(2).
9. Molothrus ater. - April. 1.(1 male), 3.(hd), 5.(hd), 7.(7 male, 2 female), 8.(hd), 14.(hd), 18., 19.(male, female) 20., 21., 22.(hd), 23., 24., 26., 28.(hd), 30.
10. Agilaeus phoeniceus. - April. 1.(30), 3.(25), 4.(50), 5.(50), 7.(15), 8.(6), 9.(#), 11., 13.(20), 14.(50), 15.(60), 17.(25), 18.(30), 19.(25), 20., 21.(50 males, 1 female. the first), 22., 23., 27., 28.(15), 29.(15).
11. Sturnella magna. - April. 1.(4), #, 3.(4), #, 4.(2), #, 5.(3), #, 6.(2), 8.(2), #, 9., 11.(#), 12.(#), 13.(2), #, 14.(4), 15.(2), 17.(2), #, 18.(2), #, 19.(2), #, 20., 21., 23., 24.(2), #, 26.(1), 28.(1), #, 29.(3), #, 30.
12. Picus pubescens. - April. 1.(2), 3.(1), #, 4.(1), #, 5.(5), #, 6.(2), #, 7.(3), #, 8.(2), #, 9.#, 13.(2), 14.(2), 15.(3), #, 17.(2), #, 18.(2), 19.(3), #, 20.(2), 21.(2), #, 22.(2), 23.(1), 24.(1), 25.(1), 29.(2), #, 30.(1).
13. Colaptis auratus. - April. 2.(1), #, 3.(1), #, 4.(1), #, 5.(5), #, 6.(2), #, 7.(3), #, 8.(2), #, 9.#, 13.(2), 14.(2), 15.(3), #, 17.(2), #, 18.(2), 19.(3), #, 20.(2), 21., 23.(2), #, 24.(2), 25.#, 26.#, 28., 29.(4), #, 30.(3), #.
14. Qiscalus aeneus. - April. 2.(25), 5.(hd)
15. Canius borealis. - April. 3.(1), #, 4.(1).