Sifted out the sand in the brooder today, well as much as I could get scraped up. Terrorized the chicks in the process and this is what they decided to do when I went to clean out the water bottle:
(3.5 weeks old)
and what happens nearly every time I refill/clean the water bottle, usually with a ton more attacking of the glass:
and what happens nearly every time I refill/clean the water bottle, usually with a ton more attacking of the glass: