"Bird" they are talking about has feathers Cliff.
But yes a bloke can take his "Bird " for a walk.
Love our "Common Language " and all it's differences.

Spend a penny - To spend a penny is to go to the bathroom. It is a very old fashioned expression that still exists today. It comes from the fact that in ladies loos you used to operate the door by inserting an old penny.

Ring - You would ring someone on the phone not call them, in the UK. Try saying "give me a ring" to the next Brit you meet. This does not work well in reverse. I asked someone in a shop to ring me up and he dragged me to the till and pulled my head across the scanner!

Grub - Food. Similar to nosh. I remember my Dad calling "grub's up", when dinner was ready as a kid. A grub is also an insect larva. Not usually eaten in England. Actually is available in some Australian restaurants!

Pardon me - This is very amusing for Brits in America. Most kids are taught to say "pardon me" if they fart in public or at the table etc. In America it has other meanings which take us Brits a while to figure out. I thought I was surrounded by people with flatulence problems!