When measuring the weight of individuals in a population of ground squirrels, what tools would be most appropriate

There are many ways to estimate ground squirrel numbers. The most common and popular monitoring technique is the combination of electronically recorded stress calls and visual counts where ground squirrels respond physically, vocally or both. You simply count the number of squirrels in a 100m by 100m area that respond to a hand-held imitation ground squirrel call tool.

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