believer01, you can use [sharp] dog toenail clippers. Make sure your bird is relaxed and you have good light. Have a jar of Quick Stop or other coagulant powder on hand, 'cause if you accidentally tip the quick, it bleeds like crazy and takes awhile to clot.
I clip a very small piece at a time, and if the nail is very long I do it over several weeks' time. If the nails are light colored, all the better since you can see the "quick" (blood vessel) showing through. Bird nails need to be kind of long (the quick is long), so I only cut when it starts turning the toes. Most breeds will scratch them down naturally, so I tend to do the silkies most of the time. I also have one older bantam cochin lady who needs a bit of a trim now and then.
Hope that helps!