Is Kittiwake endangered?

Where do kittiwakes nest in the UK?

It nests in colonies on clifftops and rock ledges from February until August; there are 380,000 pairs in the UK. The kittiwake is easily identifiable at its clifftop nesting colonies, particularly when you hear its ‘kittiwake’ call. Adults are silvery-grey above and white below, with a white head and black wingtips.

What is the scientific name of the Kittiwake?

Scientific name: Rissa tridactyla. A pretty, little gull, the kittiwake can be spotted nesting in colonies on clifftops and rock ledges around the UK’s coast. It spends the winter out at sea.

How many kittiwake colonies are there in Northern Ireland?

There are approximately 13 black-legged kittiwake colonies in Northern Ireland but few are monitored regularly. The largest colony is on Rathlin Island, which held 76% of the national population, some 9,917 AON, during Seabird 2000.

How many black-legged kittiwake in Northern Ireland?

Operation Seafarer and the Seabird Colony Register censuses both recorded over 44,000 black-legged kittiwake AON. Numbers had increased 11% to 49,160 AON by the time of Seabird 2000. The largest colony in Northern Ireland, on Rathlin Island, held 76% of the national population, some 9,917 AON, during Seabird 2000.

How many kittiwakes are in the seabird colony?

The Seabird Colony Register census recorded 1,376 AON, an increase of over 50%. The population had declined 25% (1,045 AON) by Seabird 2000, and a further 36% (672 AON) by the most recent census in 2017. During Seabird 2000, 182 black-legged kittiwake AON were recorded on the Calf of Man but, by 2017, the colony was extirpated (Figure 12).

How many chicks do black legged kittiwakes lay in Ireland?

In Ireland, there are few years when black-legged kittiwake productivity is higher than 0.80 chicks fledged per pair. A particularly poor breeding season was recorded in 2008, probably due to the very wet summer that year impacting on young birds in nests. Since then, productivity has increased (Figure 11).

Where do kittiwakes live in the UK?

A colony of kittiwakes living in Newcastle upon Tyne and Gateshead in the north east of England has made homes on both the Tyne Bridge and Baltic Centre for Contemporary Art. This colony is notable because it is the furthest inland colony of kittiwakes in the world. It is one of the most numerous of seabirds.

How many black-legged kittiwakes are there in the Channel Islands?

The black-legged kittiwake had only a small breeding presence in the Channel Islands during the last three censuses. Three AON were recorded during Seabird 2000, 34 during the Seabird Colony Register (when the population was at its peak) and 12 nests during Operation Seafarer.

Where are the Kittiwake numbers declining in the UK?

Alarming trends have been recorded in the UK’s kittiwake numbers, particularly in Orkney and Shetland where breeding birds have declined by 87% since 2000, and on St Kilda in the Western Isles where as much as 96% of the breeding population has been lost.

Is the Kittiwake at risk of extinction?

The kittiwake (a small species of gull), has been added to the list of birds considered to be facing the risk of global extinction.

How many birds are facing extinction in the UK?

The latest annual revision of birds on the IUCN Red List, which has been announced by BirdLife International on behalf of the IUCN, brings the total number of UK bird species considered to be facing the risk of extinction to nine (see note).

Which birds are suffering the biggest declines in population numbers?

Thirteen species have seen a greater than 10% rise in population numbers while three have suffered big drops. Which birds are suffering and why? Migratory birds are the biggest losers.

How common is extinction?

Extinction, or the disappearance of an entire species, is commonplace. Species have been forming, persisting and then shuffling off their mortal coil since life began on Earth. However, evidence suggests the number of species going extinct, and the rate at which they disappear, is increasing dramatically.

How are bird population surveys used in science?

Created by scientists and government agencies, they help researchers understand bird numbers, migration patterns and more. Researchers use them to create bird-identification guides and conservation plans. These surveys estimated population sizes for 529 bird species across North America.

How many species of birds are in trouble?

A 2018 study by Bird Life International concluded that birds around the world are in trouble. There are about 11,000 species of birds. Four in every 10 species of them are decreasing in number, the study found. That’s true for all kinds of birds living in all types of habitats.

Are We on the verge of a bird extinction?

Hundreds of bird species are on a track toward extinction. If these species blink out, we’ll have just one species to blame: ours. A casual observer might not notice, but take a closer look. Across the Americas, fewer birds inhabit our landscapes. Some familiar birds, like the Wood Thrush, are 50 percent less common than they were 50 years ago.

What is the best way to collect bird data?

Data from Systematic Bird Surveys (2-ha, 20 minute Search, 500m and 5km Area Searches) provide the most beneficial information of bird occurrences and population changes. Embedded surveys allow you to combine 2-ha, 20 min Search and an Area Search in one survey. This provides twice the data value in just one survey.

How many species are in the North American breeding bird survey?

The North American Breeding Bird Survey (BBS) contains data for >700 bird species, but analyses often focus on a core group of ∼420 species. We analyzed data for 122 species of North American birds for which data exist in the North American Breeding Bird Survey (BBS) database but are not routinely analyzed on the BBS Summary and Analysis…

How many native birds are in danger in New Zealand?

New Zealand is home to 168 species of native birds, 93 of which are endemic to this country, making them particularly vulnerable. According to the report, 32 percent of species are in serious trouble, 48 percent are in some trouble and the remainder are doing OK.

What is Breeding Bird Survey (BBS)?

Breeding Bird Survey (BBS) is a project monitored by the USGS and the Canadian Wildlife Service on the status and trends of North American bird populations. The data can be used to estimate population trends and relative abundances at various scales.

How is model selection used in the North American breeding bird survey?

The North American Breeding Bird Survey (BBS) provides data for >420 bird species at multiple geographic scales over 5 decades. Modern computational methods have facilitated the fitting of complex hierarchical models to these data. It is easy to propose and fit new models, but little attention has been given to model selection. Here, we discuss…

How many species of birds are there in New Zealand?

When humans first arrived in New Zealand, there were at least 131 species of land, freshwater and coastal birds, and another 65 species of seabirds (gulls, albatrosses, petrels and penguins), making at least 196 native species in total, according to a 1997 report (this count may have risen since as subspecies have been reclassified as species).

How many birds are killed by predators in New Zealand each year?

Forest & Bird used it in its response on Tuesday to the SPCA’s anti-1080 announcement. “An estimated 25 million native birds, eggs, and chicks are cruelly eaten alive by introduced predators every year in New Zealand,” F&B said.