Friends of the Swamp Bluebird Trail What is a Bluebird Trail? A man-made series of bluebird houses built and placed specifically to produce Bluebirds Why Bluebird Trails? Due to loss of habitat, this beautiful native bird has be slowly disappearing They require cavities to nest in
Bluebirds
Swallows and Wrens
Other species Good Guys----------Bad Guys
House Sparrows Bad Guys-Invasive Species
Graph Instructions Make a line graph using the number of bluebird fledglings counted in each year. You should have 7 data points (one for each year) and then connect the dots. Make a bar graph using a calculated percentage: divide the number of fledglings by the number of eggs laid and multiply by 100. That will give you a % to graph. You should have 7 bars, one for each year. remember to follow graphing guidelines given at the beginning of the year.