-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 21
Series:
Issue: 6
Date: 1907-09
Page Range: 96--97
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 22
Series:
Issue: 12
Date: 1909-03
Page Range: 262--265
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Wilson bulletin
Volume: 23
Series: new
Issue: 2
Date: 1911
Page Range: 119--125
Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 24
Series:
Issue: 9
Date: 1910-12
Page Range: 152--163
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 24
Series:
Issue: 10
Date: 1911-01
Page Range: 176--187
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 24
Series:
Issue: 11
Date: 1911-02
Page Range: 198--206
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 24
Series:
Issue: 12
Date: 1911-03
Page Range: 222--228
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Auk
Volume: 32
Series:
Issue:
Date: 1915
Page Range: 95--96
Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Auk
Volume: 32
Series:
Issue:
Date: 1915
Page Range: 98--100
Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 21
Series:
Issue: 10
Date: 1908-01
Page Range: 185--187
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 20
Series:
Issue: 4
Date: 1906-07
Page Range: 79--81
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Wilson bulletin
Volume: 45
Series:
Issue: 2
Date: 1933
Page Range: 60--66
Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Auk
Volume: 37
Series:
Issue:
Date: 1920
Page Range: 551--558
Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 20
Series:
Issue: 2
Date: 2313
Page Range: 33--40
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Wilson bulletin
Volume: 34
Series:
Issue: 2
Date: 1922
Page Range: 90--94
Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 18
Series:
Issue: 3
Date: 1904-06
Page Range: 77--80
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 19
Series:
Issue: 4
Date: 1905-07
Page Range: 95--98
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 19
Series:
Issue: 7
Date: 1905-10
Page Range: 143--146
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 19
Series:
Issue: 2
Date: 1905-05
Page Range: 56--58
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Auk
Volume: 36
Series:
Issue:
Date: 1919
Page Range: 513--524
Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Auk
Volume: 32
Series:
Issue:
Date: 1915
Page Range: 108--110
Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Auk
Volume: 23
Series:
Issue:
Date: 1906
Page Range: 313--318
Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Wilson bulletin
Volume: 40
Series:
Issue: 4
Date: 1928
Page Range: 216--218
Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Auk
Volume: 22
Series:
Issue:
Date: 1905
Page Range: 312--313
Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Auk
Volume: 22
Series:
Issue:
Date: 1905
Page Range: 233--241
Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Wilson bulletin
Volume: 23
Series: new
Issue: 1
Date: 1911
Page Range: 49--52
Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 24
Series:
Issue: 1
Date: 1910-04
Page Range: 22--22
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 23
Series:
Issue: 6
Date: 1909-09
Page Range: 113--115
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 21
Series:
Issue: 2
Date: 1907-05
Page Range: 35--37
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav - Kingston, A. G.
Type: Article
In: The Ottawa naturalist
Volume: 22
Series:
Issue: 2
Date: 1908-05
Page Range: 46--48
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Wilson bulletin
Volume: 42
Series:
Issue: 4
Date: 1930
Page Range: 239--240
Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 21
Series:
Issue: 5
Date: 1907-08
Page Range: 83--88
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 18
Series:
Issue: 6
Date: 1904-09
Page Range: 118--120
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 20
Series:
Issue: 11
Date: 1907-02
Page Range: 217--220
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 20
Series:
Issue: 7
Date: 1906-10
Page Range: 144--149
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 24
Series:
Issue: 1
Date: 1910-04
Page Range: 18--20
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Wilson bulletin
Volume: 27
Series: new
Issue: 4
Date: 1915
Page Range: 458--460
Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Wilson bulletin
Volume: 25
Series: new
Issue: 3
Date: 1913
Page Range: 138--145
Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 18
Series:
Issue: 1
Date: 1904-04
Page Range: 18--23
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects:
-
By: Eifrig, Charles William Gustav
Type: Article
In: The Ottawa naturalist
Volume: 22
Series:
Issue: 3
Date: 1908-06
Page Range: 65--66
Publication Info: Ottawa, Ottawa Field-Naturalists' Club,
Subjects: