Feathers Wear Out

29 June 2017 Many birds molt once a year during summer’s “down time” between raising their young and fall migration.  At this point their feathers have worn out. Shown here are four primary feathers (remiges) molted by a black-legged kittiwake.  It’s easy to see that these feathers are no longer in good shape for flight.  … Continue reading Feathers Wear Out