Instruct: Classify Amazon reviews into positive or negative sentiment
Query: WATCH OUT ! RED DYE IS BAD for HUMMINGBIRDS !!

Do NOT FEED Hummingbirds any mixture or concoction with RED DYE in it ! IT'S VERY HARMFUL to them !! The same red dye (Red Dye #40) has been proven harmful to humans.If you feed hummingbirds, there are many simple 2-ingredient (sugar and water ) "recipes" online. Very simple and very inexpensive !!Come on Perky Pet - you make so many good products - this PRODUCT is WAY BELOW YOUR STANDARDS. There are many safe natural red dyes - although, if the plastic feeder tube is red, who needs RED DYE at all? The whole idea is just to attract their attention to the feeder initially. They DO NOT PREFER sugar water with red dye !!! Red Dye # 40 IS HARMFUL !!!!