When the world slowed down during the COVID-19 pandemic, its effects extended beyond humans. A recent study found that it reshaped urban ecosystems to such an extent that certain city-dwelling birds even began to develop longer, thinner beaks resembling those of their wild relatives.
Did they actually become healthier? It sounds like their beak shapes just changed to adapt to what they needed to eat
Preggo birdies were eating healthy and hatched strong kids.
Source: I made it up