Makoto Takatsu is the Japanese manga artist and writer behind the series Wataridori to Katatsumuri, also known in English as Migratory Birds & Snail. This work stands as Takatsu's primary professional credit and is the basis for an announced anime television adaptation.

Takatsu began serializing Wataridori to Katatsumuri on October 30, 2019, on the NewsCrunch website, which is operated by the publisher Wani Books. The series is published under Wani Books' Crunch Comics imprint. As of August 2025, five compiled tankōbon volumes have been released. The manga experienced a hiatus after the release of its third volume in September 2021 before returning to publication. In July 2024, it was officially announced that the manga would receive a television anime adaptation.

The narrative of Wataridori to Katatsumuri follows two central characters: Unpei Mochizuki, a machine parts wholesaler who becomes disillusioned after a professional mistake, and Tsugumi Nagisa, a picture book author who lives as a digital nomad, traveling in her car with her pet dog. The story chronicles their encounter and subsequent free-spirited journeys across Japan, living and sleeping in their vehicle. The series has been categorized as a slice-of-life and road-trip comic with themes of travel and self-discovery.

Based on the available information about this work, Takatsu's artistic identity appears to focus on character-driven, atmospheric storytelling. One biographical source notes that Takatsu favors depicting atypical, independent female characters with strong personalities and is also an enthusiast of travel and animals. These elements are directly reflected in Wataridori to Katatsumuri, which features a resourceful female illustrator as a lead character and uses the open road as its central setting. The work was initially described as a road comic combining themes of travel, vehicles, and secret bases.