The creator of the brand X was humoured to have an addiction to flightless birds which led to the logo of X being one.
The name of this mascot/logo, Y, is attributed to the way it looks: like it’s wearing a Y.
The reason the creator chose to have this flightless bird as a logo was because it looked familiar: a slightly chonky being sitting down after a heavenly meal.
ID the brand X and name of the mascot Y.
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Don Quizote 
X: Linux
Y: Tux the penguin
Mascot is Tux. The brand is Linux.
X- Linux
Y- Tux
X-linux Y -tux
X: Linux
Y: Tux
Linux’s penguin mascot, Tux
X: Linux
Y: tux
Brand X is Linux by Linus Torvalds who had a “fixation for flightless, fat waterfowl” according to Jeff Ayers. Torvalds claims to have contracted “Penguinitis” after being nibbled by a little penguin on a visit to the National Zoo & Aquarium, Canberra, Australia, joking that the disease “makes you stay awake at nights just thinking about penguins and feeling great love towards them”.
The name of the mascot is Tux the penguin who looks like he’s wearing a tux.