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Number of species: 80

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Tennessee Warbler - Oreothlypis peregrina

Older male Tennessee Warblers are often readily recognizable by their overall plumage, but other age/sex classes can be more difficult to determine reliably, and may require consideration of multiple features

Quick Tips:

  • Look at the crown and nape - on AHY/ASY males the blue-gray crown contrasts sharply with the green nape, on SY males the gray crown contrasts distinctly with the green nape, on AHY/ASY females the grayish-green crown contrasts only slightly with the nape, and on HY birds and SY females the crown and nape are almost uniformly dull grayish-green
  • Examine the tail - on HY/SY birds the rectrices tend to be fairly narrow and pointed and generally lacking white; on AHY/ASY birds they are relatively broad and rounded at the tip, and the outermost 1-2 feathers may have some white near the tip
  • Look at the primary coverts - on HY/SY birds they tend to be narrow and generally somewhat paler or browner than the greater coverts; on AHY/ASY birds they are relatively broad and uniformly green with the greater coverts
  • Consider the colour of the underparts - in spring, ASY males are almost entirely white, while SY males and ASY females usually are whitish with some yellow tinges, and SY females have a faint yellowish tone overall; in fall, AHY males are whitish with a yellowish tinge, while all others are primarily yellowish

Species account prepared by McGill Bird Observatory

Click on any image below to bring up the side-by-side comparison tool.
Age / Sex  Image sets 
Hatch year / Unknown
Crown dull green, barely contrasting with the nape and back; relatively faint olive eye line and yellowish supercilium; underparts yellowish; molt limit between greenish greater coverts and more brownish primary coverts, primaries, and secondaries
Thumbnail - MG2-2630-68660-Oreothlypis_peregrina_AOU_7_52-2753.jpg Thumbnail - MG2-2630-68660-Oreothlypis_peregrina_AOU_7_52-2751.jpg Thumbnail - MG2-2630-68660-Oreothlypis_peregrina_AOU_7_52-2752.jpg
Date: Sep 28
After hatch year / Male
Crown mostly blue-gray, contrasting with green nape and back; distinct black eye line and white supercilium; underparts whitish to lightly tinged with yellow; wing uniformly greenish; rectrices relatively broad and dark
Thumbnail - MG2-2530-52307-Oreothlypis_peregrina_AOU_7_52-2768.jpg Thumbnail - MG2-2530-52307-Oreothlypis_peregrina_AOU_7_52-2766.jpg Thumbnail - MG2-2530-52307-Oreothlypis_peregrina_AOU_7_52-2767.jpg
Date: Sep 6
After hatch year / Female
Crown green, contrasting only slightly with green nape and back; relatively distinct olive eye line and whitish to yellowish supercilium; underparts yellowish; wing uniformly greenish; rectrices relatively broad and dark
Thumbnail - MG2-2530-52026-Oreothlypis_peregrina_AOU_7_52-2762.jpg Thumbnail - MG2-2530-52026-Oreothlypis_peregrina_AOU_7_52-2760.jpg Thumbnail - MG2-2530-52026-Oreothlypis_peregrina_AOU_7_52-2761.jpg
Date: Sep 4
Second year / Male
Crown mostly gray, contrasting moderately with green nape and back; relatively distinct dark eye line and whitish supercilium; underparts whitish to faint yellow; greenish greater coverts contrasting with brownish primary coverts, primaries, and secondarie
Thumbnail - MG2-2630-61957-Oreothlypis_peregrina_AOU_7_52-2729.jpg Thumbnail - MG2-2630-61957-Oreothlypis_peregrina_AOU_7_52-2727.jpg Thumbnail - MG2-2630-61957-Oreothlypis_peregrina_AOU_7_52-2728.jpg
Date: May 24
Second year / Female
Crown mostly green, barely contrasting with the nape and back; relatively faint olive eye line and whitish-yellow supercilium; underparts yellowish; greenish greater coverts contrasting with brownish primary coverts, primaries, and secondaries; rectrices r
Thumbnail - MG2-2550-81622-Oreothlypis_peregrina_AOU_7_52-2735.jpg Thumbnail - MG2-2550-81622-Oreothlypis_peregrina_AOU_7_52-2733.jpg Thumbnail - MG2-2550-81622-Oreothlypis_peregrina_AOU_7_52-2734.jpg
Date: May 25
After second year / Male
Crown solid blue-gray, contrasting with green nape and back; distinct black eye line and white supercilium; underparts white; wing uniformly greenish; rectrices relatively broad and grayish
Thumbnail - MG2-2630-69155-Oreothlypis_peregrina_AOU_7_52-2747.jpg Thumbnail - MG2-2630-69155-Oreothlypis_peregrina_AOU_7_52-2745.jpg Thumbnail - MG2-2630-69155-Oreothlypis_peregrina_AOU_7_52-2746.jpg
Date: May 24
After second year / Female
Crown grayish-green, contrasting only slightly with green nape and back; relatively distinct dark eye line and whitish supercilium; underparts white to faint yellow; wing uniformly greenish; rectrices relatively broad and grayish
Thumbnail - MG2-2630-69065-Oreothlypis_peregrina_AOU_7_52-2744.jpg Thumbnail - MG2-2630-69065-Oreothlypis_peregrina_AOU_7_52-2742.jpg Thumbnail - MG2-2630-69065-Oreothlypis_peregrina_AOU_7_52-2743.jpg
Date: May 26

Additional age / sex class descriptions

The following additional age / sex class descriptions were found for this species:
Age / Sex   Age / Sex class description
Juvenile / Unknown Grayish-green, with distinct yellow wing bars
Number of species: 80

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