| Birkhuhn | black grouse |
| Birkhahn | blackcock |
| Birkauge | wall eye walleye |
| birken | birchen |
| Perlhuhn | guinea fowl |
| Brathuhn | roast chicken |
| Bruhn | Brown |
| Birmanin | Burmese |
| Birnholz | pear |
| Birke | birch |
| Birkenhain | birch grove |
| Birkwald | birch forest birch grove |
| Birkwild | black grouse |
| Birngrün | sidebells wintergreen |
| Wirken | legacy |
| wirken | work act operate take effect appear seem knit |
| Wirkung | effect impact |
| Zirkon | zircon |
| Zirkus | circus |
| Markhirn | afterbrain |