The ability of science writers to misrepresent what is known about cause and effect by biologists and attribute emotion to song in birds, visual input in some species, tactile input in others, and pheromones in insects defies common sense.
Is any avian species known to be an outlier given the molecular mechanisms of adaptive evolution
There is no animal model for avian recognition of conspecific facial features, but that doesn’t stop the authors from extending a non-existent model to humans.
Avian/bird pheromones exist
Olfactory primacy is central to my model for the development of sexual preferences across species (e.g, including birds).