Nutritional Strategy: Nectarivory in Birds 10 Facts You Should Know
Although nectar is considered a nutritional reward for pollination, it is probably the most nutrient-dilute food consumed by birds. Nectar meets less than 15% of essential amino acid requirements and is particularly low in methionine. In fact nutrients other than sugars, such as protein, vitamins, trace minerals, and lipids are present in nectar at levels considered inadequate for growth, reproduction, or even maintenance activity…