This is the 10841st most frequent Polish word.
dzikich
"Wild" or "of the wild."
Here, 'dzikich' qualifies 'plemionach', meaning 'wild' in the plural locative form.
Legendy opowiadają o dzikich plemionach zamieszkujących te tereny.
Legends tell of wild tribes inhabiting these lands.
In this context, 'dzikich' is used to describe 'birds' in the plural genitive form as 'wild'.
Obserwowałem dzikich ptaków latających nad łąką.
I was watching wild birds flying over the meadow.
The word 'dzikich' describes the animals as 'wild' in a plural genitive form.