The 'Austrian' field service caps put the date at 1895ish to 1902. That's about all I've got, I'm afraid.
Could be, but it is just too indistinct for me to be confident about that. Could also be an Irish harp, or Prince of Wales feathers.
Canadian light infantry visiting two bear mascots in London in the 30's.
Could be a regiment now amalgamated into something else that had a history of bear mascots (canadians furnished our guards with black bear fur for bearskins)