Here are the data on the annual winter capture of Yellowstone Park wolves.
While the weight data of 2 packs is missing, but just two of these giant “canadian wolves” that were measured topped 100 pounds.
Wolf # | Date of Capture | Pack | Sex | Pelt Color | Age Class | Weight pounds |
209F | 01/30/07 | LEOPOLD | FEMALE | BLACK | ADULT | 88 |
383M | 01/30 | AGATE CREEK | MALE | GRAY | ADULT | 101 |
470F | 01/29 | OXBOW CREEK | FEMALE | BLACK | ADULT | 77 |
527F | 12/31/06 | SLOUGH CREEK | FEMALE | BLACK | ADULT | 86 |
569F | 12/31 | DRUID PEAK | FEMALE | GRAY | ADULT | 88 |
570M | 12/31 | DRUID PEAK | MALE | GRAY | PUP | 86 |
571F. | 12/31 | DRUID PEAK | FEMALE | GRAY | PUP | 80 |
572F | 01/01/07 | YELLOWSTONE DELTA | FEMALE | BLACK | ADULT | |
573M | 01/01 | YELLOWSTONE DELTA | MALE | GRAY | PUP | |
574F | 01/01 | YELLOWSTONE DELTA | FEMALE | BLACK | PUP | |
575F | 01/01 | YELLOWSTONE DELTA | FEMALE | GRAY | ADULT | |
576F | 01/01 | YELLOWSTONE DELTA | FEMALE | GRAY | ADULT | |
577M | 01/05/07 | GIBBON MEADOWS | MALE | GRAY | PUP | 88 |
578F | 01/05/07 | GIBBON MEADOWS | FEMALE | BLACK | PUP | 81 |
586M | 01/29/07 | MOLLIE’S | MALE | GRAY | ADULT | |
587M | 01/29 | MOLLIE’S | MALE | GRAY | ADULT | |
588F | 01/29 | OXBOW CREEK | FEMALE | BLACK | PUP | 88 |
589F | 01/29 | OXBOW CREEK | FEMALE | GRAY | PUP | 90 |
590M | 01/30 | AGATE CREEK | MALE | BLACK | PUP | 110 |
591F | 01/30/07 | LEOPOLD | FEMALE | GRAY | PUP | 73 |
592F | 01/30 | LEOPOLD | FEMALE | GRAY | ADULT | 88 |
593F | 01/30 | LEOPOLD | FEMALE | GRAY | PUP | 77 |
Added May 14. Past years’ capture data.
post 1115
May 13, 2007 at 10:30 AM
Oh c’mon Ralph,
Surely you can do better than this when trying to shoot down the “Canadian” wolf thing!!
There are only three males listed WITH weights, one adult — 101 pounds, two pups — one at 86 and the other at 110 (wow, he’s a whopper). Isn’t it rather convenient that the other males don’t have weights listed?? Now if I was some kind of a conspiracy theorist, I just MIGHT find that suspicious. ;^)
Layton
May 14, 2007 at 7:17 AM
Layton,
I anticipated someone like you would ask this very question, so today I’ll put a link to past years’ data. I guess you never read my old web page and the capture data posted there.
Thanks for highlighting the post.
May 14, 2007 at 3:05 PM
Wow! 110lb pup? Those agates must be eating well. 🙂
May 14, 2007 at 4:58 PM
I had been told that by 10 months most pups were 90% of their adult weight, but several month later a wolf biologist posted as said “no, they can still grow a lot.”
I wish this contradiction had been followed up.
It’s ironic that the largest wolf captured was a pup. I probably need to follow up and see if they made an error.
May 14, 2007 at 6:36 PM
One thing that plays into wolf weight is that they will gorge, sometimes 20 or more pounds at a sitting. Reasons are varied, they will go somewhere and cache food, take food back to a den site for the pups and bitch, or because a pack can go days between kills they will just gorge as a survival mechanism. I am not saying that is the case with this pup, he just maybe just the next Shaquille O’Neill of wolves.
May 14, 2007 at 6:43 PM
…in the early seventies I had the privilege of spending some time with a 8 month old c.l.Arctos that weighed in at 90 lbs. Imagine trying to feed that kid. :*)
January 27, 2008 at 6:34 AM
Thanks so much for the very detailed information on the weights of Yellowstone’s wolves. I am very interested in the size ranges of wolves and other wild dogs so find these yearly weight records of great interest. I am looking forward to the winter 2007/2008 weight records.
Keep up the good work and well done for creating such a great site, Ralph!