Latest Yellowstone wolf capture data

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.

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7 Responses to “Latest Yellowstone wolf capture data”

  1. Layton Says:

    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

  2. Ralph Maughan Says:

    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.

  3. Bill_Kaiser Says:

    Wow! 110lb pup? Those agates must be eating well. 🙂

  4. Ralph Maughan Says:

    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.

  5. JEFF E Says:

    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.

  6. JEFF E Says:

    …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. :*)

  7. Neleh Says:

    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!


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