As pigeons propagate so rapidly, I suppose that a thousand or fifteen hundred birds would have to be annually killed by mere chance.

[…] big-boned womenfolk strode away from their tea-tables to listen to the imperious Doctor.

White clowns and patchcoat harlekins lie upon cloth-of-silver, like dead geese on snow; their disguises are stained with wine which turns from black to red as the strength of the moonlight grows.

From a workflow point of view, the access to these tools seems to have been guided by artists with experience with exposure sheets (a dope sheet for lip synch is included) and traditional animation.