Wood mouse experiment.

[Newbeeneil]

Tonight on Autum watch they tested a wood mouse on the size of crack it could squeeze through. 15mm was easy for it but it wouldn't go through 14.5mm. Interesting?

 

[jenkinsbrynmair]

Should have flattened it a bit first

 

[WildPrGardens]

15mm was easy for it but it wouldn't go through 14.5mm.

All the mice I've encountered have easily fit thru 12.7 mm or half an inch. 8.3 mm or 3/8ths" seems to stop them all.

 

[Garry R]

Not sure about entrances but the best exit for a mouse are these new plastic false teeth type traps baited with a bit of Mars bar. I pop one in the eke above the frames for winter and have only have had one mouse in years. I think the small entrances are the way to go but given the damage thet mice can do in a colony I think the belt and braces approach is worth it.