Mealworms Are An Excellent Source Of Protein-rich Food All Year Round For Insectivorous Birds Like Robins & Tits. This 500g Pack Ensures You Have A Good Supply To Feed Your Garden Birds In Different Seasons, Whether Fledglings In Summer Or Adult Birds In The Grip Of Winter. mealworms Are Particularly Good For Putting Out In Hanging Feeders & On Ground Feeders At Certain Times Of Year When The Number Of Naturally-occurring Insects Is At A Low, Including When The Weather Is Bad & During The Cold Winters When Many Insects Have Reverted To Shelter & Cover. by Putting Out Mealworms You’ll Be Supplementing Their Natural Supplies, & This May Just Be The Thing To Ensure Your Garden Birds’ Survival. put Mealworms Out Too In Summer When Fledglings Are Exploring Your Garden. Fledglings Develop At A Fast Rate & Use Up Lots Of Energy To Explore Their New Surrounding While Keeping Aware Of Potential Dangers. Mealworms Provide The Energy & Protein To Keep Them Active, Alert & Responsive.