“It was moles - burrowing under the tulips and eating them
from below “
FYI:
Moles are Meat eaters (hence the M), and eat primarily grubs, worms and other insects in soils.
Voles are Vegetarians (hence the V), and eat roots, bulbs, rhizomes, grasses and anything not meat-related.
The *M* & *V* are easily distinguishable, in their culinary prefs, tunnels, travels, nocturnal habits etc...
Good primer on differences: