There are two 4 inch broad holes surrounded by our flipside garden by the bins, which are adjectives nibble. is it rats??? I live in Dublin suburbs

I live in Dublin suburbs
Answers:    Probably rats -are in that tunnels too ?

Mice would leave much smaller tunnels

Moles would be adjectives over yer garden
but rats have colossal teeth. yea, perhaps the reverse garden is infested with rats.