Iberianature Forum

ID Rodent(?) eating olives (stones?)

  • 5 Replies
  • 7441 Views

0 Members and 1 Guest are viewing this topic.

Offline Petrea

  • *
  • Hero Member
  • *****
  • Posts: 813
  • Cómpeta - Axarquía
    • Cómpeta Naturaleza
« on: February 01, 2011, 18:57 PM »
Last spring I bought a nestbox for dormice. I placed it in a cypress tree, ca 1½ m above the ground. Yesterday a had a look inside. No animal!  :'(  However, some critter had left a layer of olive stones there. I don´t know if it is a food supply or if the animal has eaten the olives and left the stones.  :noidea:

Any ideas?

Saludos
Petrea
« Last Edit: February 01, 2011, 19:01 PM by Petrea »
Cómpeta Naturaleza,  http://picasaweb.google.com/104328707567851681445

Minds are like parachutes - they only function when open.   (Thomas R. Dewar)

Offline Petrea

  • *
  • Hero Member
  • *****
  • Posts: 813
  • Cómpeta - Axarquía
    • Cómpeta Naturaleza
« Reply #1 on: March 06, 2011, 19:28 PM »
Hey, are we weak on rodents here in  :sign:?? No replies to this, nor to:

http://www.iberianatureforum.com/index.php?topic=3373.msg25969#msg25969    (Nest ID poss rodent?)     by JSW099, Syd!

Or perhaps this topic is misplaced: Perhaps it is a bird? Sardinian warbler? Not an animal hibernating in the box for sure. I had another look today and found half eaten olives. Would a  Sardinian warbler take its meal into a box?

I thought I saw some teeth marks on the stones on the previous occasion, but now I tend to think that the stones are not eaten. The d... animal leaves his garbage in my new box!  >:(

Saludos
Petrea
Cómpeta Naturaleza,  http://picasaweb.google.com/104328707567851681445

Minds are like parachutes - they only function when open.   (Thomas R. Dewar)

Offline andyj

  • *
  • Sr. Member
  • ****
  • Posts: 457
    • Conops Entomology Ltd
« Reply #2 on: March 07, 2011, 21:02 PM »
hi petrea,

i think the problem is that lots of small mammals cache food stores for winter so, without a bit more info, it is difficult to make an ID or offer an answer. If there are teeth marks on the stones, this can sometimes help indicate towards a range of species or even a species as different species chisel fruit stones and nuts in particular ways.

Andy

Offline Petrea

  • *
  • Hero Member
  • *****
  • Posts: 813
  • Cómpeta - Axarquía
    • Cómpeta Naturaleza
« Reply #3 on: March 09, 2011, 16:41 PM »
Thanks for your input, Andy. It inspired me to collect the content of the box for a closer inspection.  :booklook:

No teeth marks on the stones. However, one of the half-eaten olives did have a couple of marks in the middle of the upper edge, which could well be from the front teeth of a rodent.

I also found some rodent scat, so the bird is acquitted.  :biggrin:

The olive is 2 cm long. The long "doublepellet" is 13-14 mm long, the big fat one 9 mm. (Forgot to put the ruler in the photo).

There is also some pieces of a delicate snail shell.   :roxysnail:

Hope this helps!

Saludos
Petrea
Cómpeta Naturaleza,  http://picasaweb.google.com/104328707567851681445

Minds are like parachutes - they only function when open.   (Thomas R. Dewar)

Offline Vulpes

  • *
  • Jr. Member
  • **
  • Posts: 7
« Reply #4 on: March 13, 2011, 15:20 PM »
Those droppings look hedgehog's to me, so it makes sense to find both remains of invertebrates and fruit along with them (although I wasn't aware of hedgehogs eating olives, but coming to think about it, why wouldn't they).

Offline Petrea

  • *
  • Hero Member
  • *****
  • Posts: 813
  • Cómpeta - Axarquía
    • Cómpeta Naturaleza
« Reply #5 on: March 13, 2011, 18:50 PM »
No, sorry, a hedgehog is not possible!  :noidea:  I found the items inside a box with a small entrance hole, hanging in a tree 1½ m above ground.  :biggrin:

So, it has to be a small critter, not much bigger than a dormouse.

Saludos
Petrea
« Last Edit: March 13, 2011, 19:55 PM by Petrea »
Cómpeta Naturaleza,  http://picasaweb.google.com/104328707567851681445

Minds are like parachutes - they only function when open.   (Thomas R. Dewar)