| APA | Smart Define. (-0001). bird watching thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/bird_watching/thesaurus/related |
| Chicago | Smart Define. -0001. "bird watching thesaurus" https://smartdefine.org/bird_watching/thesaurus/related (accessed September 27, 2026). |
| Harvard | Smart Define -0001, bird watching thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/bird_watching/thesaurus/related>. |
| MLA | Smart Define. "bird watching thesaurus" 30 November -0001. Web. 27 September 2026. <https://smartdefine.org/bird_watching/thesaurus/related> |