Terms such as global warming, carbon footprint and climate change are becoming part of every day vocabulary as people become more aware of the far reaching consequences of mankind’s abuse of the planet. Researchers at the Royal Society for the Protection of Birds (RSPB), Durham University and Cambridge University have been monitoring the effect of climate change on bird populations in the United Kingdom and have reached some disturbing conclusions.

Researchers have found that birds which favor warmer climates, such as the Cirl Bunting, Cetti’s Warbler and Dartford Warbler, are becoming more common across quite a varied range of habitats in Britain as temperatures rise. Although birding enthusiasts in these areas may welcome their new visitors, it is an indication that climate change is affecting birdlife, and not necessarily for the good. In the case of some northern species, this climate change is having a decidedly negative effect which can be seen in the falling numbers of species such as Fieldfare and Redwing, as well as the Slavonian Grebe, a bird whose range traditionally extended its southern margins as far as Scotland.

Researchers examined population trends of 42 bird species in relation to climate changes over a period of twenty-five years and their findings confirmed what they had suspected – the changes in climate over the past twenty years has had a profound effect on birdlife. Professor Brian Huntley from Durham University’s Institute of Ecosystem Science says that, taking into account that the U.K. is in the middle latitudes of Europe, researchers involved in this project expected that the ongoing climatic warming would favor bird species from the south of Europe, while adversely affecting northern bird species and the results of the research confirmed this. Professor Huntley has used the results of the research to assist him in compiling “A Climatic Atlas of European Breeding Birds”, which points to potential changes in distribution of Europe’s regularly occurring nesting birds and confirms that urgent action needs to be taken to minimize climatic change in order to avoid catastrophic impacts on birds.

With a lot of attention being focused on governments to resolve these environment-altering issues, hopefully something will be done before it is too late for many of the little feathered creatures that share our planet.

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2. Experts Estimate Birds Will Be Grossly Affected By Global Warming
3. Shifting Migrations Might Indicate Global Warming

According to recent research and data, as many as 20-30% of all animal species will be at an increased risk of extinction if temperatures continue to rise. Experts estimate that an increase of more than 2.5 °C in average temperatures across the globe could have a deadly impact on existing animal species as it will make survival more difficult. This is especially the case for many birds.

The results come in the wake of a report conducted by the Intergovernmental Panel on Climate Change in 2007. The changes will especially affect birds as their life cycles are often closely linked with the changes in season. If those changes become almost indiscernible, birds will have a hard time functioning as they should. Neotropical migrant species, for example, are signaled by changes in temperature, daylight and wind as to when they should begin their annual migrations to the south and when they should return. The changes in temperature also affect other aspects of the bird’s lives – such as the availability of flowers, seeds and other sources of food at certain destinations. Too little food could result in major deaths in certain bird species. In addition to this, encroachment on natural habitats of birds that rely on specific habitats is also pushing birds to the brink of extinction. All of these reasons tell us that global warming could desolate bird populations across the globe.

In fact, research over the past few decades already shows that birds are being affected by the change in climate. Some bird populations seem to be changing their range in relation to the change in temperature, shifting closer to the poles in order to find their ideal average temperatures and habitats. Studies have documented that several North American warbler species have already shifted their range northward during the course of the past 24 years – and warblers are not the only species to be affected. The Great Kiskadee, White-tippe Dove, Tropical Parula, Green Jay, Buff-bellied Hummingbird, Tufted Titmouse, Red-bellied Woodpecker, Blue-gray Grantcatcher and Northern Mockingbird have also shifted their range – some by as many as 60 miles in the last 20 or so years.

Seabirds are also not unaffected by the trend and it has been discovered that the Sooty Shearwater has also shifted its migration routes northward. The changes in temperature also affect when these birds leave for warmer or cooler climes and some birds have been found to leave up to 21 days earlier than they would have just a few years ago. It is easy to note that the shift in bird behavior is a global phenomenon and so perhaps we should take it as a warning of how the irresponsible actions of much of the human race is slowly destroying the environment that we enjoy so much. Indeed, if trends continue it could be all over for the birds and we could be the ones heading north in search of some relief from the searing heat.

Related posts:

1. Shifting Migrations Might Indicate Global Warming
2. Climate Changes Affect Bird Populations in Europe
3. One in Eight Birds in Danger of Extinction