There is an English translation entitled The Battle of the Birds in the transcript of this podcast. The podcast translates the title[Note: this link is now dead, calling itbut the full translation is included in the book The BattlePoetry of the BirdsCarolingian Renaissance by Peter Godman.] The translated section starts:
There is a place at the very edge of the region around
Toulouse and Cahors: both districts end at this place.
This corresponds to the Latin lines:
Nempe Tolosani locus est rurisque Caturci
Extimus, hoc finit pagus uterque loco,
which are the seventh and eight lines of the poem, so it's not quite a "full rendition", but it's fairly close.