De or het wildeling?

The correct Dutch article is:

de wildeling

Rule Words ending in -ing: almost always de. See the rule

How to use wildeling

the wildelingde wildeling
this wildelingdeze wildeling
that wildelingdie wildeling
our wildelingonze wildeling
your wildelingjouw wildeling
every wildelingelke wildeling
which wildeling?welke wildeling?
a big wildeling / the big wildelingeen grote wildeling, de grote wildeling