in a population of birds brightly colored males and very dull males survive best which type of selection is this and what is most likely true about the proportion of males of intermediate color
This type of selection is called disruptive selection. In disruptive selection, extreme phenotypes are favored over intermediate phenotypes. Therefore, in this case, brightly colored males and very dull males have a higher chance of survival compared to males of intermediate color.
As a result, the proportion of males of intermediate color is likely to decrease in the population over time as they are less favored by natural selection.