Canary and finch in the same cage?

Bird welfare needs vary significantly by species — a budgie's requirements are very different from a cockatiel's, and both are very different from a parrot's — and cage size and social needs are the two most consistently underestimated factors. Before we get into whether your canary and finch can share a space, I'd love to know a bit more: what species of finch are you keeping, how many birds total, and what's prompting you to house them together — convenience, or do you think they'd enjoy the company?

Good that you're asking before just doing it — this combination trips people up. Canaries are actually fairly solitary and territorial, especially males, and a male canary will often stress a zebra finch out by chasing it or dominating feeding spots. Zebra finches, on the other hand, genuinely need companionship — but ideally from another zebra finch, not a different species. The honest answer is that cohabiting a canary and a zebra finch long-term tends to go badly for one or both birds. Is your canary male or female, do you know?

That's a really common assumption, and it makes intuitive sense — but canaries are the exception. A singing male is usually a sign he's content in his own territory, and introducing a cagemate, especially a different species, can actually suppress that singing and spike his stress levels. The better setup for both birds is actually to give each of them what their species needs: your canary a decent-sized cage of his own where he can sing freely, and your zebra finch a same-species companion in their own cage. Two zebra finches together are genuinely happier than one zebra finch with a canary.

For a pair of zebra finches, I'd recommend the Rainforest Cages Mississippi Bird Cage. It's around 78cm wide, which gives finches proper horizontal flight space — finches fly in short horizontal bursts, so width matters far more than height. It comes with multiple perches and feeding stations, the bar spacing at 1.2cm is right for finches (won't trap feet or allow escape), and it's sturdy without being overly complicated to clean. It's available on Amazon UK for roughly £80–£100 depending on the listing. Your canary can stay in whatever he's in now as long as it's a reasonable size — canaries do fine solo as long as they have enough space and stimulation.

Zebra finches are one of the easier birds to pair up — they're sociable with their own kind and bonding usually happens quickly. A few practical things: if you can, get a same-sex pair unless you want eggs (they breed readily and will fill a cage with chicks fast). Opposite-sex pairs bond tightly but you'll need to manage nesting. When you bring the new bird home, a short quarantine period of a week in a separate space is good practice in case of any illness. Then introduce them by placing the cages side by side for a few days before putting them together — by that point they'll usually already be trying to get to each other through the bars, which is a good sign.