Lancaster, Mass.
1901.
June.
  Turdus musetelinus: June 12, 2 in full song; June 13, 1 in full song; June 14, 2 in full song
  Turdus fuscescens: June 13, 1
  Turdus pallasii: June 12, 1 in full song Ponnekier woods; June 14, 1 in full song Ponnekier woods
  Merula migratoria: June 4, 8, 12 in full song, 1; June 5, 8, 2 in full song; June 6, 20, 2 in full song; June 12, in full song; June 13, in full song; June 14, in full song
  Galeoscoptes carolinensis: June 5, 1 in full song; June 6, 4; June 12, 2 in full song; June 13, 2 in full song; June 14, 2 in full song
  Harporhynchus rufus: June 12, 1 in full song; June 13, 3 in full song; June 14, 2 in full song
  Sialis sialis: June 4, 4; June 5, 6, 1 in full song; June 6, 10, 2 in full song; June 12, 8, 2 in full song; June 13, 10, 2 in full song; June 14, 3 in full song
  Parus atricapillus: June 6, 1 in full song
  Sitta carolinensis
  Mniotilta varia: June 6, 1 in full song; June 12, 1 in full song; June 13, 1 in full song
  Helminthophila rubricapilla: June 6, 1 in full song; June 13, 1 in full song
  Dendroica aestiva: June 4, 3 in full song; June 5, nest 2 eggs; June 6, 3 in full song; June 12, 3 in full song; June 13, 3 in full song; June 14, 3 in full song
  Dendroica pennsylvanica: June 4, 1 in full song; June 6, 1 in full song; June 13, 2 in full song
  Dendroica virens: June 6: 3 in full song; June 12, 6 in full song; June 13, 2 in full song
  Dendroica vigorsii: June 5, 1 in full song; June 12, 1 in full song; June 13, 1 in full song
  Dendroica discolor: June 4, 1 in full song; June 13, 5 in full song new empty nest in oak sprouts.
  Seiurus aurocapillus: June 6, 3 in full song; June 12, 3 in full song; June 13, 4 in full song
  Geothlypis trichas: June 6, 2 in full song; June 12, 1 in full song; June 13, 2 in full song; June 14, 1 in full song
  Sylvania canadensis: June 6, 1 in full song (Harvard); June 13, 1
  Setophaga ruticilla: June 4, 1 in full song; June 5, 1 in full song; June 6, 1 in full song
  Vireo olivaceus: June 4, 2 in full song; June 5, 3 in full song; June 6, 6 in full song; June 12, 6 in full song; June 13, 6 in full song; June 14, 8 in full song
  Vireo flavifrons: June 4, 1 in full song; June 5, 1 in full song; June 6, 2 in full song; June 12, Nest 3 eggs (John Thayer); June 13, 2 in full song; June 14, 1 in full song
  Vireo gilvus: June 4, 1 in full song; June 5, 2 in full song; June 6, 4 in full song; June 12, 6 in full song; June 13, Nest 4 eggs nearly hatched (J. Thayer); June 14, 8 in full song
  Ampelis cedrorum: June 6, 2 in a flock; June 12, 4; June 13, 8; June 14, 2
  Petrochelidon lunifrons: June 6, Harvard road colony of 280 nests on barn
  Tachycineta bicolor:
  Hirundo erythrogaster: June 6, 2
  Cotile riparia: June 4, 6; June 5, 6; June 6, 10; June 12; Jun 13; Jun 14
  Piranga erythromelas: June 6, 3 in full song Harvard White pine woods; June 12, 1 in full song; June 13, 2 in full song; June 14, 1 in full song
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