all the birds here have a very strong grip. sometimes when
the nails are growing out I get little pin marks on my arms.
Whisper/tiel is so lightweight it doesn't matter but his
grip is still great.
I picked up a polly perch with a lock crock for Lilo when I
was in England. Clik on the link to see. I like 1 polly
perch in a cage or play area. Lilo uses hers constantly
secured to the outside of cage by her playgym. I would like
more of these myself.