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  • Denver Holt of the Owl Research Institute
    D772552.jpg
  • Denver Holt riding a four wheeler and getting ready to drag grassland for short-eared owls nests. Ninepipe NWR.,Charlo, Montana
    D1681748.jpg
  • Denver Holt working at his desk at the Owl Research Institute, Nine Pipes NWR. Mission Valley, Montana.
    D1678616.jpg
  • Denver Holt releases a snowy owl (Bubo scandiacus) female with a satellite transmitter.
    00674-08404.jpg
  • Denver Holt glasses the grasslands of the Ninepipe National Wildlife Refuge looking for short-eared owls. Montana
    D1679671.jpg
  • Denver Holt reviews images of Daniel's snowy owls in Mylio for lectures about his studies.
    D1196958.jpg
  • Denver Holt and Liberty of the Owl Research Institute banding a  great gray owl. Mission Valley, Montana
    D1680502.jpg
  • Denver Holt makes his way out of a ravine filled with hawthorn bushes where long eared owls roost and habitat. Missoula, Montana
    D1149187.jpg
  • Toni McNamara and Denver Holt of the Owl Research Institute with a long-eared owl captured for data collection and soon to be released. Missoula, Montana
    D1148723.jpg
  • Denver Holt and Daniel J. Cox in a field near Barrow, Alaska.
    D178695.jpg
  • Denver Holt of the Owl Research Institute prepares to release a long-eared owl (Asio otus), Missoula, Montana
    D1148733.jpg
  • Denver Holt of the Owl Research Institute uses a remote camera to check inside the nest cavity of a northern pygmy owl. Polson, Montana
    D00003647-P.jpg
  • Denver Holt trapping great gray owl. Mission Valley. Montana
    D1680935.jpg
  • Denver Holt and Liberty of the Owl Research Institute banding a great gray owl. Mission Valley, Montana
    D1680562.jpg
  • Beth and Denver banding great gray owls. Mission Valley, Montana
    D1680623.jpg
  • Denver Holt, biologist for the Owl Research Institute in Charlo, Montana, looking for the northern pygmy owl (Glaucidium gnoma) in a forest of northern Montana.
    D00007963.jpg
  • Denver Holt carrying a snowy owl (Bubo scandiacus) chick. Alaska
    D771422.jpg
  • Denver Holt in the field checking for Snowy Owl nest sites. Barrow, Alaska
    00674-04801.jpg
  • Denver Holt doing his owl presentation at The Ellen Theatre in Bozeman.
    D1458882.jpg
  • Denver Holt climbs to the tree blind made for northern pygmy owl viewing.
    D00005156.jpg
  • Denver Holt removing a lead shot from an adult Snowy Owl (Bubo scandiacus). Barrow, Alaska
    00674-04719.jpg
  • Denver Holt in the field checking for Snowy Owl nest sites. Barrow, Alaska
    00674-04720.jpg
  • Denver Holt with an injured Snowy Owl (Bubo scandiacus). Barrow, Alaska
    00674-04709.jpg
  • Denver Holt with an injured Snowy Owl (Bubo scandiacus) adult male. Barrow, Alaska
    00674-00311.jpg
  • Denver Holt with an injured Snowy Owl (Bubo scandiacus) adult male. Barrow, Alaska
    00674-04711.jpg
  • Denver Holt removing a lead shot from an adult Snowy Owl (Bubo scandiacus). Barrow, Alaska
    00674-04718.jpg
  • Denver Holt and the Owl Research Institute field crew make their way into the field for long eared owl trapping near Missoula, Montana.
    D1149185.jpg
  • Denver Holt discusses the ecology of a long-eared owl with the local Missoula, Montana, Audubon chapter group.
    D1149288.jpg
  • Denver Holt of the Owl Research Institute discusses his nearly 30-year long-eared owl research project with a group from the local Audubon chapter in Missoula, Montana.
    D1148699.jpg
  • Denver Holt checking a snowy owl (Bubo scandiacus) nest on the north slope in Alaska.
    D178669.jpg
  • Denver Holt in the field checking for Snowy Owl nest sites. Barrow, Alaska
    00674-04802.jpg
  • Denver Holt teaching Nuk about Snowy Owls. Barrow, Alaska
    00674-00115.jpg
  • Denver Holt releasing a female snowy owl that has a satellite transmitter on her back.
    00674-08302.jpg
  • Denver Holt at a nesting site about to be attacked by a Snowy Owl. Barrow, Alaska
    00674-08008.jpg
  • Denver Holt of the Owl Research Institute discusses his nearly 30-year long-eared owl research project with a group from the local Audubon chapter in Missoula, Montana.
    D1148695.jpg
  • Denver Holt and Linda Schueck putting a satellite transmitter on a Snowy Owl (Bubo scandiacus).
    00674-04713.jpg
  • Denver Holt teaching Nuk about Snowy Owls. Barrow, Alaska
    00674-00114.jpg
  • Denver Holt, biologist for the Owl Research Institute in Charlo, Montana, setting up  using a peeper camera to observe the Northern Pygmy Owl (Glaucidium californicum).
    D00008106.jpg
  • Denver Holt of the Owl Research Institute discusses his nearly 30-year long-eared owl research project with a group from the local Audubon chapter in Missoula, Montana.
    D1148679.jpg
  • Denver Holt of the Owl Research Institute makinga call about abandoned Snowy Owl chicks. Alaska
    00674-00101.jpg
  • Denver Holt releasing a female snowy owl (Bubo scandiacus) with a satellite transmitter. Barrow, Alaska
    00674-08313.jpg
  • Denver Holt and Nuk near the Snowy Owl release site. Barrow, Alaska
    00674-00211.jpg
  • Denver Holt teaching Nuk about Snowy Owls. Barrow, Alaska
    00674-00117.jpg
  • Denver Holt teaching Nuk about Snowy Owls. Barrow, Alaska
    00674-00111.jpg
  • Denver Holt watches for a Snowy Owl adult to get caught in a trap. Montana
    00674-09418.jpg
  • Denver Holt gets ready to band an adult northern pygmy owl. Montana
    D00007675-P.jpg
  • Denver Holt and Laura Phillips prepare a noose carpet trap to catch a snowy owl, Barrow, Alaska.
    00674-10006.jpg
  • Denver Holt keeping a Snowy Owl (Bubo scandiacus) chick warm prior to its release. Barrow, Alaska
    00674-00120.jpg
  • Denver Holt keeping a Snowy Owl (Bubo scandiacus) chick warm prior to its release. Barrow, Alaska
    00674-00203.jpg
  • Denver Holt and Laura Phillips banding a female Snowy Owl. Barrow, Alaska
    00674-08020.jpg
  • Denver Holt, director of The Owl Research Institute, standing on the outline property of The Owl Institute. Charlo, Montana
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  • Denver Holt northern pygmy owl decoy, testing mobbing activity theory by small birds.
    D132455.jpg
  • Denver Holt checks the inside of a northern pygmy owl nest cavity with a peeper cam. Montana
    D00008101-P.jpg
  • Denver Holt and Laura Phillips work on a noose carpet trap on a jacket, Barrow, Alaska.
    00674-10702.jpg
  • Denver Holt and Laura Phillips prepare a female snowy owl for a satellite transmitter, Barrow, Alaska.
    00674-08817.jpg
  • Denver Holt and Laura Phillips prepare a female snowy owl for a satellite transmitter. Barrow, Alaska
    00674-08816.jpg
  • Denver Holt checking snowy owl chick, Barrow, Alaska.
    00674-00815.jpg
  • Denver Holt and Laura Phillips with a captured female snowy owl (Bubo scandiacus). Barrow, Alaska
    00674-10207.jpg
  • Denver Holt holding a female snowy owl (Bubo scandiacus). Barrow, Alaska
    00674-10214.jpg
  • Denver Holt and  assistant Palo Olivas checking a snowy owl (Bubo scandiacus) nest and being attacked by a tenacious male on the north slope in Alaska.
    D178718.jpg
  • Denver Holt places a Snowy Owl (Bubo scandiacus) chicks in a crevice, keeping them out of the wind. Barrow, Alaska
    00674-00208.jpg
  • Nuk and Denver Holt discuss where Snowy Owl (Bubo scandiacus) chicks were taken from. Barrow, Alaska
    00674-00108.jpg
  • Denver Holt examines a Snowy Owl chick (Bubo scandiacus). Barrow, Alaska
    00674-00813.jpg
  • Denver Holt and Linda Schueck preparing to put a satellite transmitter on a snowy owl (Bubo scandiacus).
    00674-01107.jpg
  • Denver Holt and Linda Schueck putting a satellite transmitter on a Snowy Owl (Bubo scandiacus).
    00674-04712.jpg
  • Denver Holt examines a Snowy Owl (Bubo scandiacus) pellet containing bird parts. Barrow, Alaska
    00674-04816.jpg
  • Denver Holt examines a Snowy Owl (Bubo scandiacus) pellet containing bird parts. Barrow, Alaska
    00674-04817.jpg
  • Denver Holt examines an injured Snowy Owl (Bubo scandiacus). Barrow, Alaska
    00674-04803.jpg
  • Denver Holt and Nuk band a Snowy Owl chick before releasing it. Barrow, Alaska
    00674-00913.jpg
  • Denver Holt and Nuk going to the Snowy Owl nest site to release chicks. Barrow, Alaska
    00674-00207.jpg
  • Denver Holt and Nuk going to the Snowy Owl nest site to release chicks. Barrow, Alaska
    00674-00204.jpg
  • Denver Holt has placed the Snowy Owl chicks in a crevice, keeping them out of the wind. Barrow, Alaska
    00674-00210.jpg
  • Denver Holt and Nuk band a Snowy Owl chick before releasing it. Barrow, Alaska
    00674-00113.jpg
  • Denver Holt teaching Nuk about Snowy Owls. Barrow, Alaska
    00674-00116.jpg
  • Denver Holt and Nuk searching for Snowy Owl adults. Barrow, Alaska
    00674-00109.jpg
  • Denver Holt on the tundra. Barrow, Alaska
    00674-10815.jpg
  • Laura Phillips attaches a noose carpet trap on to Denver Holt to catch a Snowy Owl.
    00674-10715.jpg
  • Denver Holt and  assistant Palo Olivas checking a snowy owl nest and being attacked by a tenacious male  on the north slope in Alaska.
    D178725.jpg
  • Denver Holt and Nuk prepare to bring Snowy Owl chicks back to the nest. Barrow, Alaska
    00674-00102.jpg
  • Denver Holt and Linda Schueck putting a satellite transmitter on a Snowy Owl (Bubo scandiacus).
    00674-04714.jpg
  • Denver Holt and Nuk prepare to bring Snowy Owl chicks back to the nest. Barrow, Alaska
    00674-00103.jpg
  • Denver Holt reviews a satellite map of owl movements from Russia to the U.S.
    00674-07314.jpg
  • Denver Holt northern pygmy owl decoy, testing mobbing activity theory by small birds.
    D132458.jpg
  • Denver Holt in his library at his home in Charlo, Montana
    D00005190.jpg
  • Denver Holt in his library at his home in Charlo, Montana
    D00005191.jpg
  • Denver checking the wings of a long-eared owl. Mission Valley, Montana
    D1148458.jpg
  • Owl Research Institute banding great gray owl family. Mission Valley, Montana
    D1680684.jpg
  • Owl Research Institute crew banding short-eared owls chicks. Ninepipe NWR. Charlo, Montana
    D1682032.jpg
  • Long-eared owl, captured and ready to be banded. Missoula, Montana
    D1149261.jpg
  • Long-eared owl captured for brief data collection, soon to be released. Missoula, Montana
    D1148454.jpg
  • Attaching a satellite transmitter to a female snowy owl, Barrow, Alaska.
    00674-09310.jpg
  • Owl Research Institute banding a great gray owl family. Mission Valley, Montana
    D1680651.jpg
  • Preparing a Bal-shatri trap for live trapping owls. Barrow, Alaska.
    00674-09604.jpg
  • Attaching a satellite transmitter to a female snowy owl, Barrow, Alaska.
    00674-09019.jpg
  • Nuk carries the precious cargo of Snowy Owl chicks on a four wheeler. Barrow, Alaska
    00674-00106.jpg
  • Nuk keeps an eye on the Snowy Owl chicks prior to release. Barrow, Alaska
    00674-00118.jpg
  • Snowy Owl, (Nyctea scandiac) Denver Holt and Laura Phillips with captured female. Barrow, Alaska.
    00674-10114.jpg
  • Snowy Owl, (Nyctea scandiaca) Denver Holt and Laura Phillips prepare to weigh female. Barrow, Alaska.
    00674-08905.jpg
  • Snowy Owl, (Nyctea scandiaca) Denver Holt reviews sattelite map of owl movements from Russia to US. Barrow, Alaska.
    00674-07116.jpg
  • Snowy Owl, (Nyctea scandiac) Denver Holt and Laura Phillips work on noose carpet trap on jacket. Barrow, Alaska.
    00674-10611.jpg
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