Question

which of the following would most likely limit the size of a red crossbill population? choose 2 answers! a a decrease in wildfires in coniferous forests b a decrease in pine grosbeak abundance c a decrease in nest site availability d a decrease in spruce tree abundance

Explanation:

Red - crossbills rely on spruce trees for food (seeds) and need suitable nest sites. A decrease in nest - site availability limits breeding opportunities, and a decrease in spruce tree abundance reduces food resources. A decrease in wildfires in coniferous forests may actually be beneficial as it can maintain a stable habitat. Pine grosbeaks are not directly related to the limiting factors of red - crossbill populations.

Answer:

C. a decrease in nest site availability
D. a decrease in spruce tree abundance