This was bigger than mice I have seen back home. Huge ears.
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My i.d. is based on rodents I have seen in U.K. (including Black Rat).
Possible there are rodents in Portugal I am not familiar with.
However I am VERY familiar with Brown Rat
(author of "Practical Pest Control")
Thankyou, I can now see in a couple of other photos I have of it, it has a rather long tail too.
The prominence of the ears does look like black rat, and the colour of the coat is very variable in that species.
The only other thing I can think of is a Mus species that we don't have in the UK - the Algerian mouse Mus spretus which does have quite large ears. It also has quite a 'roman' nose, but difficult to see that here.
OU Certificate in Contemporary Science
It's not a brown rat, the ears are too large and the muzzle too pointed.
I'm not convinced it is a black rat either, the fur looks too smooth and sleek.
As Gill hints at above I suspect it may be an Algerian mouse, large ears, dark tail; however, I'm not ready to rule out black rat.
Can you give any idea how big it was?
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It was about the size of a pet rat. If that helps.
It's a black rat then, the Algerian mouse is the size of a large wood mouse.
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