Ostrich wings...which are flightless?
Active soaring wings which are long and narrow, allowing birds to soar for a long time, like a sea gull?
Passive soaring wings that allow the bird to catch vertical columns of hot air called "thermals" and rise higher in the air, like an eagle?
Elliptical wings are good for short bursts of high speed, like a crow or robin?
High-speed wings are long and thin, but not nearly as long as birds with active soaring wings. As the name suggests, birds with this wing type are incredibly fast, but unlike those with elliptical wings, these birds can maintain their speed for a while, like a duck or falcon?
All so much alike, yet all so very different.
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