- adj. Of or pertaining to a sparrow; sparrow-like; bird-like.
from the GNU version of the Collaborative International Dictionary of English
- adj. Like or belonging to the Passeres.
from The Century Dictionary and Cyclopedia
- Sparrow-like in form or structure; pertaining to oscine Passeres or Passeriformes, or having their characters; passerine in a strict sense.
The researcher explains that this phenomenon "could be due to the flow of species coming from the rest of Europe and the north of Africa, which would increase the variety of species near the Pyrenean isthmus (passeriform birds) and the Straits of Gibraltar