well, i dont have any experiences with them myself, but it sounds like a good idea. here are my pros ond cons:
pros: your bird cant fly away, depending on the size and temperment of your bird it could prevent him/her from bitting a stranger and causing possible law suits, its a fun and safe way to take your bird outside, and it keeps him/her safe from predetors for the most part.
cons: your bird could get tangled in it, if your bird falls and your holding the leash he may hang and injure him/her self, it could be too tight or too loose. if the leash came out of your hand and your bird somehow managed to glide away the leash could get caught on something while he is trying to gllide (which would stop him from flying away but also possibly injure him.
these are based on the assumption that your bird has clipped wings. and about the law suit, i dont mean birds are some vicious creature bent on removing all fingers who come his way lol:11:, but that there are some crazy people out there who dont respect birds boundries and blame the bird when they get bit. size also matters with harness, budgie- mabey a little dangerous for him, cockatoo- seems pretty safe with the right precautions taken. hope this helped
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