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Number of species: 72

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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 / Male
Thumbnail - MG2-2630-68625-Oreothlypis_peregrina_AOU_7_52-2756.jpg Thumbnail - MG2-2630-68625-Oreothlypis_peregrina_AOU_7_52-2754.jpg Thumbnail - MG2-2630-68625-Oreothlypis_peregrina_AOU_7_52-2755.jpg
Hatch year / Female
Thumbnail - MG2-2630-68720-Oreothlypis_peregrina_AOU_7_52-2759.jpg Thumbnail - MG2-2630-68720-Oreothlypis_peregrina_AOU_7_52-2757.jpg Thumbnail - MG2-2630-68720-Oreothlypis_peregrina_AOU_7_52-2758.jpg
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 - MG2-2410-92341-Oreothlypis_peregrina_AOU_7_52-2771.jpg Thumbnail - MG2-2410-92341-Oreothlypis_peregrina_AOU_7_52-2769.jpg Thumbnail - MG2-2410-92341-Oreothlypis_peregrina_AOU_7_52-2770.jpg
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 - MG2-2530-54959-Oreothlypis_peregrina_AOU_7_52-2765.jpg Thumbnail - MG2-2530-54959-Oreothlypis_peregrina_AOU_7_52-2763.jpg Thumbnail - MG2-2530-54959-Oreothlypis_peregrina_AOU_7_52-2764.jpg
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 - MG2-2550-81623-Oreothlypis_peregrina_AOU_7_52-2732.jpg Thumbnail - MG2-2550-81623-Oreothlypis_peregrina_AOU_7_52-2730.jpg Thumbnail - MG2-2550-81623-Oreothlypis_peregrina_AOU_7_52-2731.jpg
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 - MG2-2550-81631-Oreothlypis_peregrina_AOU_7_52-2738.jpg Thumbnail - MG2-2550-81631-Oreothlypis_peregrina_AOU_7_52-2736.jpg Thumbnail - MG2-2550-81631-Oreothlypis_peregrina_AOU_7_52-2737.jpg

Thumbnail - MG2-2630-69044-Oreothlypis_peregrina_AOU_7_52-2741.jpg Thumbnail - MG2-2630-69044-Oreothlypis_peregrina_AOU_7_52-2739.jpg Thumbnail - MG2-2630-69044-Oreothlypis_peregrina_AOU_7_52-2740.jpg
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 - MG2-2560-81619-Oreothlypis_peregrina_AOU_7_52-2750.jpg Thumbnail - MG2-2560-81619-Oreothlypis_peregrina_AOU_7_52-2748.jpg Thumbnail - MG2-2560-81619-Oreothlypis_peregrina_AOU_7_52-2749.jpg

Additional age / sex class descriptions

The following additional age / sex class descriptions were found for this species:
Age / Sex   Age / Sex class description
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
Juvenile / Unknown Grayish-green, with distinct yellow wing bars
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
Number of species: 72

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