Terms of use
for free fonts on fontbird.com

The fonts which are available on this website are their authors' property, and are either freeware, shareware, demo versions or public domain. You find the terms of use, if available, in the readme file which is contained in the zip file of the most fonts.

If no readme file avaiable or no author/licence is indicated that's because we don't have information, that doesn't mean it's free