Whitetail bucks shed their antlers each year after the rut. It seems 
that the smaller bucks in this area usually shed during 
Christmas week or somewhat later, with the largest often being among the
 last to shed.  This year only two of the yearling bucks returned after 
the rut and only one stayed long enough that I could document the 
shedding of his antlers.  He had both spikes on January 2, but when he 
appeared on the morning of the 3rd, the left antler was gone.
|  | 
| Spike Buck-One Antler Shed: Canon 5D MK III 500mm F4 -1/400 sec. f4.5-ISO 1000 | 
He still had this antler on the morning of the 4th, 
but it was gone when he appeared in late afternoon.  I was able to 
photograph the raw pedicle with the 500mm F4, but the image is severely 
cropped to give it impact.
|  | 
| Raw Pedicle: Canon 5D MK III 500mm F4 -1/2000 sec. f4.5-ISO 400 | 
 I have seen bucks with antlers in early to 
mid-February 
and have heard of them still having antlers as late as early April, but 
it seems
 that most have lost them by mid-February. This pattern has held true in
 my home area for several years, but the normal order of things seems to
 have changed at Shenandoah National Park.
I used to 
visit Shenandoah National Park to photograph whitetail bucks during the 
Martin Luther King Holiday weekend, and one always saw several mature 
bucks still carrying antlers, but  Larry W. Brown reports in a post on 
Flickr, 
Full Circle-Part 1 ,
 that this is the second year in a row that the bucks have shed early.  I
 am not sure why the time frame on shedding has shifted.  One could  
suspect that it was a side effect of the tranquilizer from the collaring
 program, but that would not explain that they also shed early in 2011.
Also be sure to read Larry's post 
Full Circle-Part 2 for more about the research program and a look at how visitor numbers plummeted in November 2012. 
Originally published at 
Pennsylvania Wildlife Photographer by Willard Hill.