Alan Murphy / Grey-cheeked Thrush (Catharus minimus) feeding on berry, Texas
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Tom Vezo / Hermit Thrush (Catharus guttatus) adult perching on rock, Santa Rita Mountains, Arizona
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Karine Aigner / Biologist Clara Cooper-Mullin (left) and her colleague Olivia DaRugna. Clara is holding a Hermit thrush (Catharus guttatus), as part of her study into the migration behaviour of birds that use the isl...
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Konrad Wothe / Swainson's thrush (Catharus ustulatus), rainforest, North-Ecuador.
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Karine Aigner / Biologist blowing on the breast of a Hermit thrush (Catharus guttatus) in order to separate feathers to see how much fat the bird has gained. Fat gain is important for migratory birds as they use a lo...
01604658
Karine Aigner / Biologist about to harness Hermit thrush (Catharus guttatus) with nano-transmitter. Block island, Rhode Island, USA.
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Karine Aigner / Wax worms are portioned out by weight as biologist studying Hermit thrush (Catharus guttatus). The food is weighed out to test how much food it takes for the birds to fatten adequately before migratio...
01604656
Karine Aigner / Hermit thrush (Catharus guttatus) captive during scientific study, with a wax worm. This bird is part of a study about weight gain, diet and condition prior to migration. Once the thrush has reached i...
01604654
Karine Aigner / Woman releasing a Hermit thrush (Catharus guttatus) from a mist net. Block island, Rhode Island, USA.
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Karine Aigner / Hermit thrush (Catharus guttatus) caught in a mist net. Block island, Rhode Island, USA.
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Karine Aigner / Biologist harnessing a Hermit thrush (Catharus guttatus) with nano-transmitter. Block island, Rhode Island, USA.
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Karine Aigner / Hermit thrush (Catharus guttatus) wearing a barely visible nano-transmitter. Block island, Rhode Island, USA.
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Karine Aigner / Hermit Thrush (Catharus guttatus) held in hand before release - wearing a barely visible nano-transmitter. Block island, Rhode Island, USA.
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Karine Aigner / Research study assistant helping release a Hermit thrush (Catharus guttatus) from a mist net. The Thrush might be a possible cohort individual for a study on fat gain and antioxidants in diet before m...
01604647
Karine Aigner / Biologist taking blood samples from Hermit thrush (Catharus guttatus) for scientific study looking at antioxidant capacity in blood and oxidative damage caused during migration. Block island, Rhode I...
01604646
Karine Aigner / Research study assistant helping release a Hermit thrush (Catharus guttatus) from a mist net. The Thrush might be a possible cohort individual for a study on fat gain and antioxidants in diet before m...
01604645
Karine Aigner / Vials of blood from a Hermit thrush (Catharus guttatus) in a centrifuge after being spun. The centrifuge separates the plasma (yellow) from the packed red blood cells (red). This research is to measu...
01604644
Karine Aigner / Volunteer, helping release a Hermit thrush (Catharus guttatus) from a mist net. The Thrush might be a possible cohort individual for a study on fat gain and antioxidants in diet before migration. Bloc...
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Karine Aigner / Portrait of a Hermit thrush(Catharus guttatus) with white background, Block island, Rhode Island, USA. Bird caught during scientific research.
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Karine Aigner / Biologist feeding Hermit thrush (Catharus guttatus) a mixture of elderberry powder. This powder is full of an antioxidant called anthocyanin. The anthocynanin is thought to help birds recover from and...
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Nick Saunders/ BIA / Hermit Thrush (Catharus guttatus), Saskatchewan, Canada
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Nick Saunders/ BIA / Grey-cheeked Thrush (Catharus minimus), Saskatchewan, Canada
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Alan Murphy/ BIA / Veery (Catharus fuscescens), Texas
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Alan Murphy/ BIA / Swainson's Thrush (Catharus ustulatus) calling, British Columbia, Canada
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Alan Murphy/ BIA / Swainson's Thrush (Catharus ustulatus) calling, British Columbia, Canada
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Alan Murphy/ BIA / Swainson's Thrush (Catharus ustulatus) calling, British Columbia, Canada
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Donald M. Jones / Swainson's Thrush (Catharus ustulatus) at pond, western Montana
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Donald M. Jones / Swainson's Thrush (Catharus ustulatus) at pond, western Montana
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Scott Leslie / Hermit Thrush (Catharus guttatus), Canada
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Alan Murphy / Swainson's Thrush (Catharus ustulatus), Texas
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Alan Murphy / Swainson's Thrush (Catharus ustulatus), Texas
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Alan Murphy / Swainson's Thrush (Catharus ustulatus), Texas
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Alan Murphy / Grey-cheeked Thrush (Catharus minimus), Texas
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Nick Saunders / Swainson's Thrush (Catharus ustulatus), Saskatchewan, Canada
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Alan Murphy / Swainson's Thrush (Catharus ustulatus), Texas
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Floris van Breugel / Wood Thrush (Hylocichla mustelina) perched on branch, Sapsucker Woods, Ithaca, New York, USA. May.
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Robert Royse / Hermit Thrush (Catharus guttatus), Ohio
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Nick Saunders / Swainson's Thrush (Catharus ustulatus), Saskatchewan, Canada
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Robert Royse / Swainson's Thrush (Catharus ustulatus), Maine
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Alan Murphy / Veery (Catharus fuscescens), Texas
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Glenn Bartley / Hermit Thrush (Catharus guttatus), British Columbia, Canada
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Matthew Studebaker / Veery (Catharus fuscescens) singing, Ohio
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Nick Saunders / Grey-cheeked Thrush (Catharus minimus), Saskatoon, Saskatchewan, Canada
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Jacob S. Spendelow / Grey-cheeked Thrush (Catharus minimus), Alaska
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Jacob S. Spendelow / Swainson's Thrush (Catharus ustulatus), Alaska
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Alan Murphy / Grey-cheeked Thrush (Catharus minimus), Texas
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Alan Murphy / Grey-cheeked Thrush (Catharus minimus), Texas
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Alan Murphy / Swainson's Thrush (Catharus ustulatus), Texas
