Hen or cockerel

Based on that image then you can have a Sunday dinner once rather than breakfast every morning.

More suitable for the pot than the oven.

As a city slicker living in rural Ireland I have chickens( getting more tomorrow).

I've even raised them for meat. I know a chicken doesn't come from Aldi 🤣

Given that it is a Rhode Island Red hybrid it is probably a hen, they are sex linked so the breeder spots and removes the rooster at birth by feather colour. They aren't commonly bred but are the most common hen. Ie they are bred by a small few and hatched in very large numbers in incubators.

Unless you have some one near by breeding them or had the conflux of events to throw out such a hen, unlikely.

What are its legs like?

Personally going by size and colour I would reckon a hen.

Hen.

Size of it, the small foot spur, it's breed.

A young hen at that, point of lay pullet, probably 15 weeks.

It's a mature hybrid hen (not a Rhode Island) by the size of her comb and wattles and their colour. Her legs also look greyish in colour with noticeable scales in the picture with indicates she is mature. A pol would have yellow legs and less mature comb and wattles. She does look healthy and best of luck with her.