Sub-adult Red-tailed Hawk Central Park, NYC near Winterdale Arch
Image by BEN CACACE
(see additional photos below)
A young Red-tailed Hawk showed up in Central Park this summer. On the 4th of July she was photographed by Lincoln Karim. Lincoln has posted 10 photos of this one year old hawk which has just started to grow its adult red tail feathers.
A hawk's juvenile feathers drop out as the adult ones grow in. Lincoln's photos demonstrate this hawk was born last year and is considered a sub-adult. According to the books full adult plumage is acquired in a hawk's second year. A sub-adult may retain some juvenile wing and tail feathers in its second year.
The tail feathers (retrices) on a Red-tailed Hawk are numbered 1 through 6 starting from the center making up a total of 12 feathers. Each feather is paired symmetrically and preceded with the letter ‘r’. The r1 tail feathers are the centermost ones. When the tail is folded these feathers are visible when viewing a hawk from behind. The r6 tail feathers are the outermost ones and are visible on the folded tail when looking at the front of a hawk.
The tail feathers on this hawk, from the 4th of July photos, appears to have only adult r1s & r2s.
A few weeks after Lincoln's photos I spotted this hawk on the 18th, 19th & 23rd of July. At the time of these observations the r1, r2 & r6 tail feathers were red. The r6s were much shorter than the r1s & r2s.
I spotted this hawk again on August 4th which is when I took these photos near Winterdale Arch east of ‘Locust Grove’. In these images both the r3 & r4 feathers have grown in since the 23rd of July. The only juvenile tail feathers appear to be the r5s. Even in binoculars I wasn't able to pick up other juvenile feathers.
Will these r5 feathers remain until she molts again next summer?
Click image for uncompressed view of tail
Click image for uncompressed view of tail
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