MAMMALS

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The difference between rat and mouse
Skinned rat and mouse Skull from rat and mouse

Rat Rattus norvegicus Bergenhout, 1769
Rotta / Rattus norvegicus Bergenhout, 1769 Rotta / Rattus norvegicus Bergenhout, 1769 Rotta / Rattus norvegicus Bergenhout, 1769 Rotta / Rattus norvegicus Bergenhout, 1769

Mink Mustela vision Schreber, 1777
Mink / Mustela vision Schreber, 1777 Mink / Mustela vision Schreber, 1777 Mink / Mustela vision Schreber, 1777

This mink was shot in Tórshavn 01.10.2011. It is believed to have traveled from Hirtsals in Denmark to the Faroe Islands onboard the ferry Norrøna. The shooters were excellent as you can see. So was the taxidermist, who stuffed the mink. The eye-teeth's on the mink were broken, so the mink has most likely escaped from captivity. Photographs are sent to an expert, so we are just waiting for his reply.

Wild mink does not exist in the Faroese nature, and let's hope, it stays that way!

Minkur / Mustela vision Schreber, 1777 Minkur / Mustela vision Schreber, 1777

Ringed seal puppy Phoca hispida seen near Suðuroy
Harbour seal puppy / Phoca vitulina Harbour seal puppy / Phoca vitulina

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Soprano Pipistrelle Bat Pipistrellus pygmaeus
Pipistrellus pygmaeus Pipistrellus pygmaeus Pipistrellus pygmaeus Pipistrellus pygmaeus

18. April 2011 Siggert Patursson found a Soprano Pipistrelle bat Pipistrellus pygmaeus (55 KhZ ) in Tórshavn.

Soprano Pipistrelle bat Pipistrellus pygmaeus is only found once earlier in Faroe Islands, in Sandoy November 1993.
N.B. Until now 2 bats are found in Faroe Islands in 2011. Hans Meinhard í Eyðansstovu found the first in Mykines 24. February. The species is not determined yet.
Pipistrellus pygmaeus Pipistrellus pygmaeus Pipistrellus pygmaeus

List of Bats, seen in the Faroe Islands until 31.12.2010


Parti-Coloured Bat Vespertilio murinus

Parti-Coloured Bat / Vespertilio murinus Parti-Coloured Bat / Vespertilio murinus Parti-Coloured Bat / Vespertilio murinus
Parti-Coloured Bat / Vespertilio murinus Parti-Coloured Bat / Vespertilio murinus Parti-Coloured Bat / Vespertilio murinus Parti-Coloured Bat / Vespertilio murinus

Parti-Coloured Bat / Vespertilio murinus

12. September 2010 Trygvi Midjord observed a Bat on the neighbor house. Rúni Thomsen photographed the Bat and caught it.
The Bat was sent to Nólsoy, where Jens-Kjeld Jensen determined it to be a Parti-Coloured Bat Vespertilio murinus.
Bats are registered app. 50 times in the Faroe Islands, but Parti-Coloured Bat is only registered for sure two times earlier – 1 in Sandavági, Vágar in 1988 and 1 in Hvalba, Suðuroy in 1994.
This same day - 12. September 2010 - Virgar Kjærbo caught a Nathusius’s Pipistrelle Bat Pipistrellus nathusii in Víkarbyrgi, Suðuroy, see photographs below.

Parti-Coloured Bat / Vespertilio murinus

14. september 2010: We must have a regular Bat-invasion at the moment! According to Hjørdis Hávarsá at least 3 or 4 Bats fly around in Norðoyri on Borðoy. Simultaneously at least 4 Bats fly around in the village of Nólsoy.

14. October 2010 20 persons have observed at least 30 different Bats, seen in the Faroe Islands so far this year.


Nathusiu's pipistrelle Bat Pipistrellus nathusii Nathusius’s Pipistrelle Bat / Pipistrellus nathusii
Sound recording of Nathusiu's pipistrelle Bat in Nólsoy September 2010
Nathusius’s Pipistrelle Bat / Pipistrellus nathusii Nathusius’s Pipistrelle Bat / Pipistrellus nathusii Nathusius’s Pipistrelle Bat / Pipistrellus nathusii

Sheep eating seaweed to get salt and iodine
Sheep eating seaweed to get salt and iodine Sheep eating seaweed to get salt and iodine Sheep eating seaweed to get salt and iodine Sheep eating seaweed to get salt and iodine

Nathusiu's pipistrelle Bat Pipistrellus nathusii found on Nólsoy 16.01.2010
Pipistrellus nathusii

16. januar 2010 Mikkjal Holm found an almost dead Nathusius’s Pipistrelle Bat hanging on the wall of the grocery Matvørubúðin, owned by Hervør Hansen, Nólsoy. It was a male with the weight of only 5.5g. This is the second Nathusius’s Pipistrelle Bat ever found in the Faroes in January - the first was found in Sumba, Suðuroy 09.01.1992.

Pipistrellus nathusii
Bats are seen in the Faroe Islands the whole year except from in April.

The research of the Faroese mice continues
Dr. Yingguang Chan & Emilie Hardouin. Dr. Yingguang Chan, Emilie Hardouin & a Faroese ram.
Dr. Yingguang Frank Chan (CV) works with mice at the Max-Planck-Institut in Germany.

Read Frank Chan's experience from the tour to the Faroes

In one year M.Sc. Emilie Hardouin will be finished with her Phd project about mice from the Antarctic regions at the same Institute. Visit Emilie Hardouin's website

Dr. Eleanor Jones' (see below) research showed, that the Faroese house mouse is very special. On some islands they are very big, inbred and have very little variation in the DNA. Dr. Chan needed these mice in his work, so he came to the Faroe Islands together with Emilie Hardouin to catch some of these mice, which they brought back with them to Germany. There they will cross-breed them with German lab mice. Ms Hardouin will also do some research with their adaptability in hard environments as in the Faroes.

It will indeed be very interesting to see the result of this research!
I think it is a very interesting detail, that 2 mice died very fast after entering Germany because of the luxury junk diet. Many of the others mice were in poor condition as well, but after changing the diet to "Faroese proper mouse food" they recovered immediately.   
Frank Chan's photo gallery on Flickr
Dr. Yingguang Chan & Emilie Hardouin. Dr. Yingguang Chan & Emilie Hardouin. Dr. Yingguang Chan & Emilie Hardouin. Dr. Yingguang Chan & Emilie Hardouin.
Emilie Hardouin with a lot of mouse traps.

Very interesting research called Of mice and (viking?) men
Nólsoyarmús / Nólsoymus / Nólsoymouse. Nólsoyarmús / Nólsoymus / Nólsoymouse. Lit de parade. Eleanor Jones, Nólsoy 2006.
1. October 2008 we read on the news from BBC, that a very interesting article was published about how DNA from mice could prove, how people had settled up through Great Britain.
All my life I have been interested in mice - as so many other things. Late in 1970 I started to collect Faroese mice for later research. Through Dánjal Petur Højgaard I came in connection with Eleanor Jones in the autumn of 2005. She is studying at the University of York, and that's how Faroe Islands were included in this "Viking-mice-investigation".
Eyðfinn Magnussen were included as well as 2 of his pupils, which later wrote their BSc Thesis - of course about the Faroese mouse - in cooperation with the University of York.
Eleanor Jones has visited Faroe Islands, and she spent one day in Nólsoy, where I handed over my gift to this DNA investigation - 2 kilos of Faroese mice.
At the moment Eleanor is looking into the connection between the mice from among other Orkney and those from the Faroe Islands, Iceland, Greenland and New Foundland. We are of course looking very much foreward for the result of this investigation.

Old pregnant Grey seal dead in Nólsoy
17. September 2008 an old pregnant Grey seal crawled ashore in Halgatoft in Nólsoy and lay down to die.
The biologist Bjarni Mikkelsen says, that he has seen seals, that were 27 years old, and their teeth were in splendid condition compared to the teeth of the poor animal on the photographs.
I estimate the age of this Grey seal to be somewhere between 30 to 40 years. I have never before seen such worn teeth on any seal.
The length of the mother was 195 cm from the tip of the nose to the end of the tail. The unborn puppy was 87 cm. long.

Nathusius' pipistrelle bat caught in Nólsoy
Average size: Body length 46 - 55 mm, weight 6 - 15,5 g, ear length 10 - 14 mm, wingspan 220 - 250 mm.

Tuesday 15. September 2008 people on Nólsoy observed at least 2 Nathusius' pipistrelle bats flying around in the village. "The fat was in the fire", but then Jens-Kjeld came upon a good idea - he took of the net of his "fleygastong", which is a ketcher used to catch birds with in flight and mounted this on a net with much smaller meshes. The day after a local hunter - René Hansen, succeeded in catching one of the bats. It is necessary to be very careful, when you are handling living bats, since they could be infected with rabies.

The first Nathusius' pipistrelle bat was registered in the Faroe Islands in 1987. Since then it is registered 7 times, so Nathusius' pipistrelle bat is the most common bat in the Faroe Islands.

Most probably they reach Faroe Islands, because they get off course during their migration. They can fly long distances, since a marked species did fly as far as 1600 km.
And - bats are not blind, they rest in the day and are active in the night. They observe any movement and obstacles in the night with their ultrasound.
Nathusius' pipistrelle bat is rare in Western Europe and more common in Eastern Europe. It spreads from Eastern Europe to Ural, Caucasus and Western Asia Minor. It is observed in Scandinavia, though rarely in Sweden and is more common in Mid-Spain and Southern Portugal. It was not known to breed in Great Britain until as recently as 1997.

The hare in Nólsoy
Jens-Kjeld with the young hare from Oyri.
It is very important to set out hares from the other islands to avoid inbreeding among the hares in Nólsoy. This young female hare came from Oyri in Eysturoy in 2004. She was marked with a plastic earring, so that we could recognize her, in case she was shot. We haven't heard from her yet, so hopefully she is still running around somewhere in the field in Nólsoy.
Lepus timidus.

Read all about hare hunting in Nólsoy


Stranded Grey seal puppy Halichoerus grypus
Saturday evening 29. December 2007, this starved Grey Seal puppy was seen in Stokkvík in Nólsoy. Grey seal breeds in November and December, and we estimated the age to be approximately 1 month, since the puppy still had some of the white fur. Most probably the puppy was washed out from the breeding cages for the seals during the last storm, wherafter it has been cut off from the mother. The read painting/patent on its head and body most likely comes from the net from a salmon farm.
Grey Seal puppy.

Harbour porpoise Phocoena phocoena visiting Nólsoy in 2007
Phocoena phocoena.

Harbour seal Phoca vitulina visiting Nólsoy in 2001

Walrus Odobenus rosmarus visiting Nólsoy in 1998
Odobenus rosmarus. Odobenus rosmarus. Odobenus rosmarus. Odobenus rosmarus. Odobenus rosmarus. Odobenus rosmarus.
Observations of Walrus Odobenus rosmarus in Faroe Islands

There are 17 observations of Walrus in the Faroe Islands since about 1810. We believe, there have been 14 different animals, whereof the 3 were observed on Nólsoy.
Between 1810-1820 a Walrus was seen near the church on Nólsoy (Nolsøe, Poul 1962. Tríggjar frásøgnir. Varðin nr. 35, side 118-119). The locals first tried to kill the Walrus with an iron bar then with an harpoon. The Walrus escaped, but it is doubtful, whether it survived the visit on Nólsoy.
In about 1938 Poul Wang observed a Walrus on a small reef below ”Hørg”, situated East of the village on Nólsoy. The Walrus dissapeared almost immediately. It had very large teeth.
23. marts 1998 the third Walrus was observed near ”Halgutoft”, situated South-East of the village on Nólsoy. The day after it was on land in Halgutoft and it stayed in the area until 1. April, which was the last day, that it was seen.


Bearded seal Erignathus barbatus visiting Nólsoy in 1995
Erignathus barbatus.
And Eysturoy in 2010
Skeggkópur / Erignathus barbatus. Eysturoy 20.06.2010 Skeggkópur / Erignathus barbatus. Eysturoy 20.06.2010 Skeggkópur / Erignathus barbatus. Eysturoy 20.06.2010 Skeggkópur / Erignathus barbatus. Eysturoy 20.06.2010
Skeggkópur / Erignathus barbatus. Eysturoy 20.06.2010

This Grey seal puppy Halichoerus grypus payed Nólsoy a visit in 1986
Grey seal is very colorful. The males are dark/black with various amount of white spots (some of the males on the photographs have a lot of white fur all over the body). The females are grey/silver colored on the back and they have a lighter breast with spots. The younger seals are lighter in the colour, but they can be brown - as you can see on the photographs.
The photographs below show the distribution and various age in a seal population: mostly young seals of various age, some few males and approximately 20-25% females.
Author: Bjarni Mikkelsen, biologist

Halichoerus Grypus, Mykines 03.05.2010 Halichoerus Grypus, Mykines 03.05.2010 Halichoerus Grypus, Mykines 03.05.2010


Hooded seal puppy "Blue bag" Cystophora cristata visiting Nólsoy in 1984
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