Birds increase in urban areas - NatureScot

A blue tit - Lorne Gill-NatureScot
A blue tit - Lorne Gill-NatureScot

New research reveals an increase in the number of birds in Scotland’s towns and cities.

NatureScot’s latest report, which looked at 14 species of urban birds, shows a significant increase of 19% between 1994 and 2019.

A number of birds have seen an upsurge across all habitats, but there have been more rapid increases in urban areas. In particular, typical garden birds such as blue tits, great tits and goldfinches have seen rises in their numbers. Although increased use of birdfeeders are likely a key factor, these species showed even higher population increases on farmland, so other factors, such as climate change, are likely to have contributed as well.

Woodpigeons saw the biggest increase: their numbers increased by 6% across the whole of Scotland, but swelled by 188% in urban areas. This increase could be due to fewer nest predators, such as carrion crows and magpies, and less competition from urban breeding collared doves, which have suffered a 46% drop. Milder winters are also helping this highly adaptable bird, so they can breed all year-round with our towns offering a safe haven.

Meanwhile, house sparrows, song thrushes and blackbirds all declined in urban areas – although they increased across other habitats. Possible reasons for their urban declines include poorer food quality for chicks and increases in disease and predation in towns and cities.

NatureScot’s Trends and Indicators Analyst, Simon Foster said: “We know that some bird species use more than one habitat and their habitat preferences evolve over time, based on a variety of factors from availability of food to climate change. Wood pigeons are a good case in point, responding to milder winters and the safety of towns to help them increase.

“We all need to play our part, putting nature at the heart of solutions to climate change and biodiversity loss, and there are lots of practical things people can do to help birds in their local areas. I’d suggest putting out bird feeders and keeping them regularly topped up and providing nest boxes. We’d also encourage people to plant hedgerows or let their existing hedges grow thickly to provide food and shelter for many bird species.

The report improves on past terrestrial breeding bird indicators by adding a new urban category and refining the farmland category to show arable, pastoral (grazing), wet and woody farmland trends. It also includes a general wetland bird indicator. These improvements will help measure progress towards climate change and biodiversity targets.

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Posted On: 07/12/2022

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