| Pent |
| Not free |
| Confined |
| In a pen |
| Mewed up |
| Penned in |
| Shut (up) |
| Locked up |
| In prison |
| Pent (up) |
| Fenced in |
| Cooped up |
| Imprisoned |
| Penned (up) |
| Behind bars |
| Incarcerated |
| In an aviary |
| In captivity |
| Like lovebirds |
| Like pet birds |
| Not free-range |
| Like MMA fights |
| Made, as a goal. |
| Not roaming free |
| Kept behind bars |
| Like zoo animals |
| Like gnus in zoos |
| Like pet hamsters |
| Like some parrots |
| Like a zoo animal |
| Like many parrots |
| Confined, in a way |
| Housed like Tweety |
| Like many canaries |
| Like some canaries |
| Like pet parakeets |
| Like some fighters |
| Like some hamsters |
| Confined, as a bird |
| Like a gnu in a zoo |
| Placed in an aviary |
| Confined, as a canary |
| Enclosed, as a canary |
| Like pet birds, often |
| Like many zoo animals |
| Like animals in a zoo |
| In captivity, in a way |
| I Know Why the --- Bird Sings |
| Behind bars, like animals in a zoo |
| MTV reality show about mixed martial arts |
| Like the fighters in the Ultimate Fighting Championship |