Figure 1. Myiarchus wing. Compare placement of feathers on folded wing (left) and same wing extended (right). A - The inner (#7-9) secondaries or "tertials." B - middle and outer (#1-6) secondaries; note on Myiarchus, each feather is pale-edged, and these edges form a pale "secondary panel" on the folded wing; these feathers are numbered from the middle of the wing inward. C - primaries; each primary is edged with rufous along the outer web; on the folded wing, these edgings create the rufous panel characteristic of these Myiarchus species. D and E - pale-edged wing coverts that create the wing bars.
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