Which of the following do researchers think is a primary factor in the decrease of North American bird populations?(1 point)

Question

Responses

Decreased hunting of predator species
Decreased hunting of predator species

Changes in farming practices such as draining wetlands and pesticide use
Changes in farming practices such as draining wetlands and pesticide use

Recreational hunting of bird species such as waterfowl
Recreational hunting of bird species such as waterfowl

A decrease in conservation efforts

Answer 1

Researchers generally think that "Changes in farming practices such as draining wetlands and pesticide use" is a primary factor in the decrease of North American bird populations. This change has significantly impacted habitats and food sources for many bird species, contributing to declines in their populations.