Final answer:
Surveys and counts would be the best method for measuring the number of geese that appear every spring in a state.
Step-by-step explanation:
The best method for measuring the number of geese that appear every spring in a state would be surveys and counts. This method involves conducting surveys and counts of geese to determine their population size. Other methods such as satellite imagery, tagging and tracking, and DNA analysis can provide additional information but may not be the most effective for measuring the number of geese. By later collecting a new sample that includes both marked and unmarked individuals, scientists can estimate the total population size. Additionally, employing camera traps or drones for aerial photography can support data collected with mark and recapture method by providing insights into the geese’s distribution and density over large areas.