Climbing problems can come from very long toenails, too. The mail is only supposed to curve 90 degrees. If more than that, they’re too long.
I’ve seen birds tripping over long nails. When they’ve been overgrown for a long time, it can be best to clip in two or more stages, just taking off a bit each time.
That looks like a fun toy! My boy just got one called the “octopus” that has lengths of straw cut and slid over shoelace-like strings. My Quakers have enjoyed building materials, foot toys they can carry and arrange, and intricate toys they can fuss with.