Lancaster, Mass.
1901.
May
  Turdus mustelinus: May 24, 1 in full song; May 30, 1 in full song
 Turdus fuscescens: May 16, 2; May 30, 1 in full song
 Turdus pallasii
  Merula migratoria: May 6, 6 in full song; May 14, 4 in full song; May 15, 20 in full song; May 16, 30 in full song; May 19, 2 in full song; May 20, 6 in full song; May 22, 2 in full song; May 23, 20, 3 in full song; May 24, 2 in full song; May 30, 5 in full song daybreak; May 31, 5 in full song daybreak
  Galeoscoptes carolinensis: May 15, 6 in full song; May 16, 8; May 23, 1 in full song; May 24, 1 in full song; May 31, 1 in full song
  Harporhynchus rufus: May 25, 1 in full song; May 16, 1 in full song; May 20, 1 in full song; May 29, 2; May 30, 1 in full song
  Sialia sialis: May 6, 3 in full song; May 14, 1 in full song; May 15, 10; May 15, 10; May 23, young on wing; May 24, 1 in weak song; May 31, 1 in full song
  Parus atricapillus: May 15, 1 in full song; May 16, 1 in full song
  Sitta carolinensis: May 6, 1 in full song village; May 23, 1 in full song Miss Holman's
  Mniotilta varia: May 15, 2 in full song; May 16, 19 in full song; May 24, 2 in full song
  Helminthophila rubricapilla: May 15, 2 in full song; May 16, 6 in full song
  Compsothlypis a. usneae: May 15, 1 in full song; May 16, 1in full song; May 20, 2 in full song
  Dendroica aestiva: May 14, 2 in full song; May 15, 12 in full song; May 16, 10 in full song; May 20, 3 in full song; May 23, 3 in full song; May 24, 3 in full song; May 29, 1 in full song; May 30, 3 in full song; May 31, 3 in full song
 Dendroica caerulescens: May 15, female
 Dendroica coronata: May 15, male in full song, 2 female female; May 16, female
 Dendroica maculosa: May 15, 2 in a flock; May 16, 1; May 24, 1 in full song
 Dendroica pennsylvanica: May 15, 6 in full song; May 16, 10 in full song; May 23, 3 in full song
 Dendroica striata: May 15, male; May 20, male in full song; May 24, male in full song; May 29, 3 in full song; May 30, 3 in full song; May 31, 1 in full song
 Dendroica blackburniae: May 15, male
 Dendroica virens: May 15, 3 in full song; May 16, 4 in full song, 1
 Dendroica virgorsii: May 15, 2 in full song; May 16, 3 in full song
 Dendroica discolor: May 16, 1 in full song
  Siurus aurocapillus: May 15, 4 in full song; May 16, 6 in full song; May 24, 1 in full song
 Geothlypis trichas: May 15, 3 in full song; May 16, 8 male male, 1 female; May 20, 1 in full song
 Sylvania canadensis
 Sylvania pusilla: May 16, female
 Setophaga ruticilla: May 15, 8 in full song; May 16, 6 in full song; May 24, 3 males in full song, 1 female building; May 30, 1 in full song Cemetery; May 31, 1 in full song Cemetery
  Vireo olivaceus: May 15, 1 in full song; May 24, 1 in full song; May 30, 1 in full song; May 31, 1 in full song
 Vireo solitarius: May 16, 1 in full song
 Vireo flavifrons: May 14, 1 in full song; May 15, 1 in full song; May 16, 1 in full song; May 23, 3 in full song; May 24, 1 in full song; May 29, 2 in full song; May 30, 2 in full song; May 31, 2 in full song
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