In a bowl combine strawberry tops, sugar and lemon juice.
Stir around to incorporate the sugar and lemon juice evenly with the strawberries.
Cover and allow to macerate in the refrigerator until the next morning.
Add all of the contents in the bowl to your blender.
Blend everything up, then put it all through a metal sieve to strain.
Use a silicone spatula to scrape the inside of the sieve, allowing the juice to run through the small holes. (You may need to scrap the outside of the sieve to get all of the strawberry goodness into your bowl.)
Once all of the juice has drained and all you have left is a lump of ground stems and pulp, give it to the chickens (remember that there is likely still some sugar left, so if your chickens have had a sugary treat already, just add the waste to your compost pile).