Chirpy 

A simple domestic drama about expectations, fidelity, and escape. A couple purchase a beautiful white bird with a red beak. It is said that the bird will grow attached to its owners and never fly away. While the girlfriend is working as a hostess, flirting with men for money, the boyfriend decides to draw a portrait of the new family member, and disaster strikes. (Source: Drawn & Quarterly) Note: Published in Monthly Manga Garo No. 19 (March 1966).