How much do terns weigh?

Answered by Phillip Nicastro

Terns vary in size and weight depending on the species. The smallest tern, the least tern, measures around 23 cm (9.1 in) in length and weighs approximately 30-45 g (1.1-1.6 oz). On the other hand, the Caspian tern, which is one of the larger tern species, ranges from 48-56 cm (19-22 in) in length and weighs about 500-700 g (18-25 oz).

Compared to gulls, terns have longer bills, lighter bodies, and a more streamlined shape. They also have long tails and narrow wings, which contribute to their graceful appearance during flight.

I have always found terns fascinating to observe, especially when they are in flight. Their slender bodies and long wings make them incredibly agile in the air. I remember one particular experience where I was lucky enough to witness a colony of terns feeding near the coast. It was mesmerizing to see them dive into the water with such precision, catching small fish in their sharp bills.

When it comes to discussing the weight of terns, it is important to note that weight can vary even within the same species. Factors such as age, sex, and overall health can influence an individual tern’s weight. However, the provided weight ranges give us a general idea of what to expect for different tern species.

To summarize, terns come in various sizes, with the smallest species weighing around 30-45 g (1.1-1.6 oz) and the larger species reaching weights of 500-700 g (18-25 oz). Their long tails, narrow wings, and streamlined bodies make them highly skilled and elegant flyers. Observing terns in their natural habitat can provide a captivating experience, as they showcase their agility and hunting techniques.