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A very green five-branched tree with each branch topped by a three-leaved shamrock on a manuscript page. Three of the branches have bird heads emerging from egg-like bulges and two other branches have brown-striped and tailed geese hanging from their by their tails (although they don't seem to be attached to the branches in any way). Two mature brown-striped and tailed geese, with blue wash over their bodies, are floating on the water below the tree. The geese also have brown necks and their beaks are very rounded, seeming to smile. Image from British Library, Royal MS 13 B VIII [Topographia Hibernica / Expugnatio Hibernica / Itinerarium Kambriae], folio 8v.

A very green five-branched tree with each branch topped by a three-leaved shamrock on a manuscript page. Three of the branches have bird heads emerging from egg-like bulges and two other branches have brown-striped and tailed geese hanging from their by their tails (although they don't seem to be attached to the branches in any way). Two mature brown-striped and tailed geese, with blue wash over their bodies, are floating on the water below the tree. The geese also have brown necks and their beaks are very rounded, seeming to smile. Image from British Library, Royal MS 13 B VIII [Topographia Hibernica / Expugnatio Hibernica / Itinerarium Kambriae], folio 8v.

These particular barnacle geese are from the third version of "Topographia Hibernica" created under the supervision of the author, Gerald of Wales (c1146-c1223). #medievalmanuscripts #medievalbeasts #barnaclegoose #barnaclegeese

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A dead white/pale grey bird on its back on a rock beside a lopsided tree with one full branch and one missing branch. There is a red background and a gilt frame on three sides. There is gothic text above the image and the manuscript page is very dark and appears to have been creased/folded. Image from Lippische Landesbibliothek, Ms. 70 [Der Naturen Bloeme], folio 54r.

A dead white/pale grey bird on its back on a rock beside a lopsided tree with one full branch and one missing branch. There is a red background and a gilt frame on three sides. There is gothic text above the image and the manuscript page is very dark and appears to have been creased/folded. Image from Lippische Landesbibliothek, Ms. 70 [Der Naturen Bloeme], folio 54r.

Medieval barnacle geese that missed the water when they fell from their originating tree died as in this image from a c1287 version of "Der Naturen Bloeme". #medievalmanuscripts #medievalbeasts #barnaclegoose #barnaclegeese

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A stylised tree with blue and red flowers has black birds hanging from it by their beaks. Some of the birds appear to be stuck in the flowers. The tree is on a knob of ground with its branches hanging over greenish waves. There is a gilt rectangular background in the centre of the image and then a red background decorated with white shamrock-style outlines. It is framed by a three-sided blue outline and then a white decorated red square. Image from Bodleian Library, MS. Bodley 764 [Bestiary (Second Family)], folio 58v.

A stylised tree with blue and red flowers has black birds hanging from it by their beaks. Some of the birds appear to be stuck in the flowers. The tree is on a knob of ground with its branches hanging over greenish waves. There is a gilt rectangular background in the centre of the image and then a red background decorated with white shamrock-style outlines. It is framed by a three-sided blue outline and then a white decorated red square. Image from Bodleian Library, MS. Bodley 764 [Bestiary (Second Family)], folio 58v.

Gerald of Wales (c1146-c1223) is said to have developed the idea of barnacle geese generation while on an 1185 tour of Ireland. His descriptions imply that the geese are formed from goose barnacles which were really seeds. #medievalmanuscripts #medievalbeasts #barnaclegoose #barnaclegeese

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A pale gilt square frame with four red petals at each corner surrounds an image of a tree with five white birds hanging from it by their beaks. Two larger white birds are floating on the green wave beneath the tree. The image has a red background and the tree trunk is a darker red. The birds' feathers are drawn with black ink squiggles. Image from Bibliothèque de l'Arsenal, Ms-3516 [L'Image du monde / Bestiaire of Pierre de Beauvais], folio 205r.

A pale gilt square frame with four red petals at each corner surrounds an image of a tree with five white birds hanging from it by their beaks. Two larger white birds are floating on the green wave beneath the tree. The image has a red background and the tree trunk is a darker red. The birds' feathers are drawn with black ink squiggles. Image from Bibliothèque de l'Arsenal, Ms-3516 [L'Image du monde / Bestiaire of Pierre de Beauvais], folio 205r.

In medieval thought, barnacle geese hatched from trees which grew over water. They would hang off the tree by their beaks until mature when they would fall down into the water as seen in this 13th century image. #medievalmanuscripts #medievalbeasts #barnaclegoose #barnaclegeese

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Skeins of geese fly beyond the triptych of windows.

Skeins of geese fly beyond the triptych of windows.

Yet more geese fly by

Yet more geese fly by

Even more geese - something has definitely upset them:

Even more geese - something has definitely upset them:

Something has stirred up the #BarnacleGeese #uist

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@alan678.bsky.social
The #BirdOfTheDay theme is #Migratory birds that migrate to or from your country.

Barnacle geese breed on the Siberian tundra. In winter, #barnaclegeese migrate en masse to overwinter in the Netherlands.

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Stock photo barnacle geese

Stock photo barnacle geese

New publication: Assignment of wintering #BarnacleGeese to breeding populations using genome-wide single-nucleotide polymorphisms. #brantaleucopsis #population #biodiversity
doi.org/10.1007/s103...

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Video

Stuck in traffic.. #rushhour #longyearbyen #svalbard #barnaclegeese

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Saw 7 Barnacle Geese on Hornsea Mere yesterday, which was a nice surprise #birds #ukbirding #barnaclegeese #yorksbirding @s-yorksbirding.bsky.social @nybirdnews.bsky.social

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Preview
Diel rhythmicity of activity and corticosterone metabolites in Arctic barnacle geese during breeding Despite the continuous daylight of the Arctic summer, barnacle geese manage to keep rhythmic behavior. Arctic summers may pose a challenge to animals relia

New publication: Diel rhythmicity of activity and #corticosteronemetabolites in #Arctic #barnaclegeese during #breeding. #circadianclock #zeitgeber
doi.org/10.1093/behe...

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Video

Preening.
#BarnacleGeese

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Nonnnengänse flyby

Nonnnengänse flyby

#BarnacleGeese

#VogelFlausch #BirdPhotography #Weisswangengans

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Nonnengänse

Nonnengänse

Golden Hour: #BarnacleGeese flyby.

#VogelFlausch #BirdPhotography #Weisswangengans

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Gänse am Himmel

Gänse am Himmel

A small flock of #BarnacleGeese

#VogelFlausch #BirdPhotography #weißwangenganse

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Bit of a wild goose chase today! All quite distant but eventually found the #TundraBeanGeese #RussianWhiteFrontedGeese and #BarnacleGeese with a large flock of #PinkFootedGeese at #Weybourne #NorthNorfolk Thank goodness for sunshine 🌞#NorfolkBirding

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Flock of #BarnacleGeese in the field beyond my garden includes 3 birds with rings, belonging to the Svalbard-population & caught on the Solway in south-west Scotland. #Waterfowl

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Just watched a #WhiteTailedEagle in a fight to the death with a #Greylag #Goose on the #loch. Poor goose lost but was too heavy for the eagle to fly with. He's got it to the bank, however. Saw the #WildIsles footage with the #BarnacleGeese but this is new to me with greylags. #Waterfowl

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I was collecting seashells on the beach, and suddenly… #islay #november #barnaclegeese

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New NIOO publication: Limiting #scaring activities reduces economic #costs associated with #foraging #barnaclegeese: Results from an individual‐based model, by @BartNolet and others. #agriculture #grassland #yielddamage
https://doi.org/10.1111/1365-2664.14461

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New NIOO publication: Year-round activity levels reveal diurnal foraging constraints in the annual cycle of migratory and non-migratory #barnaclegeese, by @thomaslameris @BartNolet @HenkvanderJeugd and others. #daylength #foraging #migration...

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Redirecting

New publication: "Sharing habitat: Effects of migratory #barnaclegeese density on meadow breeding #waders", by @BartNolet and others. #GPStracking #nestsuccess
https://doi.org/10.1016/j.jnc.2023.126355

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New publication: #BarnacleGeese breeding on Novaya Zemlya: current distribution and population size estimated from tracking data, by @NHBuitendijk @HenkvanderJeugd @BartNolet @M_P_Boom and others. #novayazemlya #animaltracking
https://doi.org/10.1007/s00300-022-03110-8

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Phenomenal footage just now of one of the most amazing birds on earth on @BBC #LifeStory - #BarnacleGeese @BBCEarth http://t.co/dkfsAlq4ly

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