Tern make up the clutch. Most species feed on fish caught by diving from flight, but the marsh terns are insect-eaters, and some large terns will supplement their diet with small land vertebrates. Many terns are long-distance migrants, and the Arctic tern may see more daylight in a year than any other animal. Terns are long-lived birds and are relatively free from natural predators and parasites; most species are declining in numbers due directly or indirectly to human activities, including habitat loss, pollution, disturbance, and predation by introduced mammals. The Chinese crested tern is in a critical situation and three other
Longdon-on-Tern Longdon-on-Tern Longdon-Upon-Tern (also known as Longdon-on-Tern or colloquially Longdon) is a village in east central Shropshire, England. It is in the unitary district of Telford and Wrekin, and is approximately east of Shrewsbury and north-west of Telford. Longdon-Upon-Tern is situated on the River Tern, a tributary of the River Severn. Settled since at least the Normans, the village is notable as the site of the Longdon-on-Tern Aqueduct, the first large-scale cast iron navigable aqueduct, designed and built by Thomas Telford for the canal. The aqueduct is Grade I listed and a preserved as a scheduled ancient monument. The name Longdon