Did you know you can accurately predict what sugar is in the nectar of plants just by watching starlings? Starlings and other members of their family lack the enzyme sucrase, so cannot digest the dissacharide sugar sucrose (table sugar). So when you see them feeding on nectar like this one, you know for sure the nectar has a mix of the two monosaccharides glucose and fructose! #research #conservation #pollinationecology #sugar #starling #birdsrock












