Which live animals have you seen on stage?

A vulture when Fiona Shaw played Our Lady in Colm Toibin's The Testament of Mary at the Barbican in 2014. You could even go up on stage before the play started and so get up close to it.

The goose in The Ferryman.
Dogs in Downstate and Shakespeare in Love (I "met" the latter at stage door, super proud).

And Wee Thomas, of course.

A couple of goldfish in Richard III (The Jamie Lloyd production) until PETA moaned and put a stop to it even Lloyd is vegan didnt see the issue and it was after about a month in yo the production.

Chickens - Jerusalem

The Adorable Tanya... a baby elephant who with her trainers and presenters Mr and Mrs Jenda Smaha, did summer seasons on stage including the ABC Theatre in Blackpool in 1967 (where I saw it) and a few pantos as well, in the 60s, including Cinderella with Cliff Richard at the Palladium, also panto at the Manchester Palace. The act was featured in the Royal Variety Show in 1967, and performed in Las Vegas for over a decade.
This was the 60s, we didn’t know much better . Of course during the lifetime of this act there was more than one Tanya .... baby elephants don’t stay adorable for too long. The trainer/owner of the act was German , he presented the act with his wife in Indian costume, and for what it’s worth, according to reports , the animals in his care were very well cared for. Whether they should have been used as performers and transported around the world is the big question.

On the subject of animals on stage , Rupperts Bears (yes real bears, the name of the act is a coincidence and not linked to Rupert the bear , Paul and Danuska Ruppert from Germany, trained and presented the act) featured in Tommy Steele’s Dick Whittington panto at the Palladium .

Not plays, I know, but still animals on stage. How times have changed.

Yep. I was just watching an episode of my favourite British reality series, Airline, and David Pugh made an appearance. I'd never heard of it before, apparently it was a flop with audiences. But managing 37 ducks would have been quite the task, I imagine. This was also way back when the Noel Coward was the Albery.

And i'm sure I've seen a 'little lamb' in Gypsy ere now.

Opera and ballet seem to be fond of large beasts, apart from the already mentioned I've also seen 2 horses in Katya Kabanova and a horse and donkey in a Russian Don Q version.

Same here! You can't forget dear TOBY!

As well as on stage animals, we’ve all experienced at one time or another a few animals within the auditorium, or as I like to call them, the anti-social theatre patrons as noted in the bad behaviour thread.