What's eating my basil seedlings?

[KatherineF]

Hi
Im growing various seedlings on a windowsill in a room we use to store stuff
Most are fine, except the basil seedlings disappeared one by one before the true leaves came out
Also, one Sunflower seedling looks its had a small nibble on one side of stem
I have previously seen some tiny black flies in there, but can't see any now
Any ideas what it could be?
Thanks

[Scarlet]

Is it indoors? In your house? If that's the case probably not slugs or snails......

I would guess at Mice.

[Jungle Jane]

If the pots weren’t washed or if the compost came from outside a tiny snail could be about,there’s loads of them this year,the winter was so mild for them all to survive. Check all the undersides of the trays & pots or have a look during the night you might see it.

[toomanytommytoes]

Earwigs enjoyed my basil last year.

[KatherineF]

Thanks for your replies.
I can't see any snail trails, and it seems so strange that nothing else was eaten!

[jackarmy]

Woodlice also enjoy a little nibble of seedlings mind.