Definitions and visual references for the traits used throughout the guide.
Sample primaries of a flycatcher with emargination at P6. When possible, start counting at P9 as that will be the most laterally exposed primary when the wing is folded. Click the image to show the emarginated sections of the feathers.
Optional evidence
Which empid fits?
Answer any number of questions. Unanswered clues do not affect the ranking.
Current ranking
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100%Ready to place a vector.
Choose Create vector, then click or tap once on the wing to place a horizontal vector.
Likely primary ratios
Place at least five feather tips to compare p7-p6, p6-p5, and p5-p4.