[wittyreference]

They comprise a large percentage of the caloric intake of a lot of bird species, which are already fragile due to ecosystem fracturing. This could result in a hit to bird populations - and if the mosquitos adapt and rebound, the birds are unlikely to rebound nearly as quickly, allowing for a potential enormous boom in total mosquito population.

[wittyreference]

I don’t really know why this prompted straight up downvotes. These are the exact concerns voiced in multiple Nature articles over the past decade or so.