>>43780598A giant bird can be appealing on its own merits for some, but I'm most personally drawn to the latent potential of the creature in question as opposed to its physical identity; bird, slime, ninety-nine story sentient skyscraper, that simply doesn't take precedence. You can consider it a power fetish, or perhaps an admiration for the humanly unattainable, which I differentiate from a more common submissive take on the topic by extrapolating the subject's capabilities, competency and discipline as being worthy traits for securing as a metaphorical mate, in much the same vein as the stereotypical knight skipping the damsel in distress to bed the dragon keeping watch. Indeed, this boasts all of the flexible benefits of putting you in the same scenario when far greater-scope entities come into play with the general rule of thumb being that dissuasion by unconventional appearance pales comparatively to the intelligence and raw potential it commands. There's a reason people can find Combine Advisors of all things arousing after all, and it isn't just because of those long tongues.
Galarian Zapdos' prominence of powerful legs, stout digits and razor claws play a vital role in its exertion of strength, which leads me to conclude that it is quite the appealing design, not because I find muscles, feet, knives or avians arousing, but because it meshes soundly with my individual ideal of a fantastical protector or lover. Being a largely intangible fetish, it's understandable that most might misunderstand intent or disregard it in favor of something more immediately gratifying.