Scientist is studying populations in a conservation region of a state park, shown in the figure. The scientist’s team originally captured 100 mourning warblers (a type of bird) in various parts of the region and fastened rings on their legs. The birds were then released. After three weeks, the team recaptured 100 mourning warblers throughout the region, 12 of which had rings. 1 Research the CMR method and how it is used to estimate populations. Then use it to estimate the mourning warbler population of the conservation region. State any formula(s) that you used to estimate the population.
1 unit =2000feet State Park
Conservation Region

2 Choose two or more shapes to use to estimate the area of the
conservation region. What is the approximate population density, in birds per square mile, of mourning warblers in the conservation region? Explain your reasoning, and give your answer with the appropriate number of significant digits.
3 The scientist plans to cordon off a triangular section of the region, two sides of which are steep cliffs, to protect some trees. The side of the triangle between (3, 5) and (4, 4) requires a border. What length of cordoning tape will the scientist need?