As the cliffside habitats of the gull come under increasing pressure, artificial nest sites are being built to help the gulls adapt
Constructed from galvanised steel and plywood, the latest hotel to open in Lowestoft, Suffolk, boasts a sea view and promises plenty of privacy. Which should suit the guests that flock to the prime seaside spot: black-legged kittiwakes looking for a place to nest.
The kittiwake hotel opened in March, offering artificial nesting sites for the seabirds. Like albatrosses, kittiwakes spend most of their lives at sea, but traditionally nest on cliff ledges between March and July.
Experts say that artificial nesting sites could support the kittiwakes as they face increasingly unpredictable weather because of climate change, limited prey due to the overfishing of sand eels in some areas, and the building of more offshore windfarms.
The three structures at the port of Lowestoft site could house up to 430 breeding pairs of black-legged kittiwakes, which are classified as “vulnerable” on the IUCN’s red list of threatened species. Globally, kittiwake numbers have dropped by 40% since the 1970s, and there are about 380,000 pairs in the UK, according to the Wildlife Trusts.
The Lowestoft project was commissioned by the energy companies Vattenfall and ScottishPower to mitigate the impact of planned offshore windfarms. The design was led by the consultancy Royal HaskoningDHV in collaboration with Natural England, RSPB, East Suffolk council and the Marine Management Organisation.
Dave Tarrant, marine environmental consultant at Royal HaskoningDHV, says the hotels were designed to “hide nicely” behind an existing four-metre-high wall to “allow kittiwakes and port staff to carry on about their business without the risk of disturbing each other”.
Aspect, sunlight, wind direction and ledge size have all been taken into account to make the hotels as inviting as possible, with fencing at the base and an overhanging roof to protect the kittiwakes from predators such as foxes, rats, peregrines and gulls.
Each nest can be accessed from within the structure via a hatch to allow for fortnightly surveys and ringing.
The Lowestoft hotel is not the first in the UK – the first high-rise kittiwake tower was built in 1998 at Gateshead, Tyne and Wear, to offset any displacement of birds during the reconstruction of the Baltic Centre for Contemporary Art. A few years later, the tower was relocated to a council-owned site called Saltmeadows along the River Tyne.
A second tower, billed as a “kittiwakery”, has just been installed in Gateshead by the German energy company RWE. The designer, Nathalie Stevenson, spent three years studying 91 urban and coastal colonies, including ones on Middleton Island in Alaska, as well as in France and Norway, to develop a prototype.
Stevenson, director of the environmental renewables consultancy Shoney Wind, says coastal kittiwakes tend to arrive en masse in March, whereas in urban locations, one bold, solitary bird sometimes arrives in February, possibly to secure the best nesting site, before others turn up.