Birds in our Garden, Cambridge
[December 1915]
1 White-throat S. [White-throated Sparrow] December 1: hd. [heard]; December 3 hd. [heard]; December 5: 1; December 6: 1; December im. [immature] 13: 1; December im. [immature]; December 14: 1; December 16: 1 ad [adult]; December 18: 2 im. [immature] both im. [immature], 1 [im. [immature] weak song]; December 19: 1 im. [immature]; December 20 hd. [heard]; December 21 im. [immature]; December 22 hd. [heard]; December 23: 1; December im. [immature]; December 24: 2 [in weak song]; December 25: 1 im. [immature in weak song]; December 27: 1 im. [immature in full song] (full song twice at sunset); December 28: 1 im. [immature]; December 30: 3 im. [immature in a flock]; December 31: 2 im. [immature]
2 Blue Jay December 1: 2 [singing]; December 5: 1; December 6: 1; December 7: 1; December 9: 1; December 11: 2; December 12: 1; December 14: 1; December 16: 1; December 19: 1; December 21: 1; December 22: 2 [in a flock]; December: 24 hd. [heard]; December 27: 1; December 30: 1
3 House Sp. [House Sparrow] December 3: 6+; December 5: 6+; December 7: 4+; December 8: 4; December 9: 2; December 10: 2; December 11: 6+; December 12: 6; December 13: 5+; December 14: 6+; December 15: 6; December 16: sev. [several]; December 17: sev. [several]; December: 18 sev. [several]; December 19: 6; December 20: 6; December 21: 15+ [in a flock]; December 22: 10+; December 23: 12; December 24: 12; December 27: 6+; December 28: 4; December 30: 25; December 31
4 Chickadee December 4: 2 [in a flock]; December 5: 1; December 6: 1 at suet; December 8: 1 [at suet]; December 9: 1 [at suet]; December 10: 1 [at suet]; December 11: 1 [in full song] [at suet]; December 12: 1 [at suet]; December 13: 2 [in a flock] [at suet]; December 14: 1 [at suet]; December 15: 2 [in a flock in full song] [at suet]; December 16: 2 [in a flock in full song] [at suet]; December 17: 1 [at suet]; December 18: 1 [at suet]; December 19: 1; December 20: 2 [in a flock]; December 21: 1; December 22: 1; December 23: 1; December 24: 1; December 26: 1 at suet; December 27: 1 at suet; December 29: hd. [heard]
5 Flicker December 5: 1; December 6: 1; December 7: 1; December 10: 2 [in a flock] (Percy); December 14: hd. [heard]; December 29: hd. [heard]
6 Downy [Downy Woodpecker] December 5: [male]; December 11: [male]; December 15: hd. [heard]; December 20: hd. [heard]; December 21: 1; December 23: hd. [heard]; December 28 hd. [heard]; December 30: [male] at suet
7 Crow December 5: 4 [in a flock] on ground, Hubbard Park; December 11: 2 in Jungle; December 29: 1 [in flight]; December 30: 2 [in flight] 
8 Golden crest K. [Golden-crested Kinglet] December 6 hd. [heard]; December 7: 1; December 9: hd. [heard]; December 11: hd. [heard]; December 13: 1; December 14: hd. [heard]; December 15: hd. [heard]; December 24: 1
9 Red-bellied Nuthatch December 8: [female] at suet; December 9: [male at suet]; December 11: [male at suet]; December 12: [male at suet]; December 15: [male at suet]; December 16: hd. [heard]; December 19: hd. [heard]; December 20: ad [adult male] at suet; December 21: [male at suet]; December 30: [male] in lindens
10 Herring Gull December 8: 10+; December 13: 11 [in a flock in flight]
11 Hairy Woodpecker December 11: 1 seen by Gilbert [Robert A. Gilbert]; December 14 [male] in lilacs; December 20 [male] in catalopa [catalpa]; December 21: 1
12 Fox Sparrow December 19: 1 on ground in Jungle with Im. [immature] Peabody Bird; December 21: 1 [on ground in Jungle with immature Peabody Bird]; December 23: 1 [on ground in Jungle with immature Peabody Bird]; December 24: 1 [on ground in Jungle with immature Peabody Bird]; December 27: 1 [on ground in Jungle with immature Peabody Bird]; December 29: 1 in lilacs.; December 30: 1 [in lilacs]
13 White Bellied Nuthatch December 23: [male] at suet in catalapa [catalpa]