1892  
May   
Mass. 
Concord
16 Spizella socialis - May 1[x]-2[4]-3 6[x]-4[2]-5-6[4]-7[8]-8[6]-9-10-11-12
13-14-15-16-17-19-20[3]-21[2]-22[2]-23-28
17 Spizella pusilla - May 1[2]-1[2]-3[8]-4[4]-5[2]-6[2]-7[2]-8[4]-9-10
11-12-13-14[4]-15[2]-17[1]-18[1]-21[1]-30[1]-31[1]
18 Zonotrichia abicollis - May 1[5-4] - 2[10] - 3[30] - 4[25] - 5[15] -6[8] -7[10 -8[8]
9[15] - 10[10] -13[2] -17[2?] 18[2?] -23[1?]
19 Poocaetes gramineus - May 1[4] -2[2] -3[10] -4[2] -5[2] -6[3] -7[2] -8[2] -9
10[2] -11 -12 -13 -14 -15[1] -16 -17[1] -20[1] -21[1] -22[2] -23[2] -24[1] -25[1] -26[1] -27[1] -29[2] -30[1]
20  Carpodacus purpureus - May 1[2] -2[2] -3[6] -4 -5 -6 -7[2] -8[2] -9
10 -11 -12 -13 -14 -20[3??] -21]8-9] -24[1] -25[1] -26[1]
21 Sturnella magna - May 1[2]- 2[3] -3[6] -4 -5 -6 -7 -8 -9[5] -10
11 -12 -13 -14 -15[2] -16[4] -17 -19 -20[2] -21[4] -22[2] -25[2] -26[3] -27 -28[2] -29[2] -30[2]
22 Scolecophagus carolinus - May 1[?] -2[16][4] -3[50 -4[25] -5[8] -7[2] -8[2]
9[?] -11[2♂]
23 ?[Agelaeus phoenicianus] - May 1 -2 [75♂][29] -3 [50♂] -4 [50♂][25+6♂] -5 -7 -8
9 -10 -11 -12 + nest building -16 -17 -18 [6] -19 -21 -22[6] 23 [6♂159] 24 -25 [25♂][20♀] -28 -29 30[15] 31
24 Molothrus ater - May 1[4] -2[6] -3[15] -4[6] -5[3] 6-[4] -7 -8 -9 -10
22 [1♂] -28 [4]
25  Corvus americanus - May 1[4] -2[6] -3[15] -4[6] -5[3] -6[4] 7 -8 -9 10
11 - 12 -13 -14 -15[5] -16 -17 -18[6] -19 -20[25] -21 -23[10] -24 -25 -28 -29 -30 -31
26 Cyanocitta cristata - May 1[2] -2[2] -3[8] 7[2] -8[2] -9[1] -10[1] -12 -14
15[4] -18[4] -19[1] -20[4][2][2] -21[1] -23[2] -24[2] -25[2] -28[1] -29[6] -30[2] -31[2]
27  Sayornis phoebe - May 1[1] -2[2] -3[3] -4[2] -5[1] -6[1] -7[1] -8[1] -9[2]
10[2] -11 -12 -13 -14 -18[1] -19[1] -22[1] -18[1] 29[1]
28 Colaptes auratus - May 1[2] -2[4] -3[8] -4[3] -5[2] -6[2] -7[4] -8[4] -9
10[*]-11 -12[*] -13[*] -14[1*] -15[2] -17[1*] -18[2] -19[2] -20[2] -21[2] -22[1*] -23[1*] -24[1*] -26[1*] -28[1*] -29[2*] -30[1*] -31[2*]
29 Dryobates pubescens - May 1[1] -2[2] -3[1] -4[2] -5[1*] -9[1*] -15[2*] -18[1] -30[1*]
31 [1*]
30  Buteo borealis - May 1[1]