| breeding groun | A few months later they return to their breeding grounds in the Arctic. |
| breeding ground | (n) a place where animals breed |
| 温床 | [おんしょう, onshou] (n) hotbed; breeding ground; (P) [Add to Longdo] |
| 群棲地 | [ぐんせいち, gunseichi] (n) rookery; breeding grounds; nesting place [Add to Longdo] |
| 繁殖地 | [はんしょくち, hanshokuchi] (n) breeding grounds [Add to Longdo] |