Stop 1 Sycamore
Look up into the tree and you will see bunches of sycamore seeds
Sycamore seeds are dispersed by wind. The seeds have wings that cause them to spin through the air like helicopters, which delays their fall and helps them travel far from the parent tree. This allows the seeds to spread out and have more space to grow.
This is an effective form of seed dispersal. As you walk around how many sycamore trees can you see? Sycamore trees can be a problem as they take up space where native trees could grow.
If you see a sycamore seed on the ground drop it and see how far it travels and if you can get it to spin like a helicopter.