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The House Martin – known as Gwennol y Bondo (‘The Swallow of the Eaves’) in Welsh – is well known to many people. From April to September it lives cheek by jowl with those lucky enough to have this energetic little bird nest under their eaves. In recent years however, the numbers breeding in the UK have fallen by two-thirds, leading to the species being amber listed as a bird of conservation concern and in need of some help.
Although the decline hasn’t been quite as severe in Wales as it has been in England, we’ve also seen a substantial drop in numbers here too. The species was confirmed as breeding in only 98 tetrads in East Glamorgan between 2007-11, down from 173 tetrads between 1984-89 – that’s a drop of 43% (source: East Glamorgan Bird Atlas).
This recent decline has prompted the BTO to launch a House Martin Survey in 2015. It is a first step to help us discover more about this species, to identify why they are declining and to provide scientific evidence to help inform policy decisions that could reverse the declines.
How can I help?
We need volunteers who are willing to carry out two or three visits to a randomly selected (i.e. pre-selected) 1-km square between late May and mid-July, to look for House Martins and their nests. By surveying random squares, we will be able to assume that our results are representative across a wider area, and produce a robust population estimate against which changes in the future can be measured.
How long will each visit take?
The survey visits will involve walking around the square looking for House Martins and their nests and mapping and recording a few details about any nests that you find. In most squares each visit will normally take around one to two hours – however, the visit length depends on the habitats within the square: visits to urban squares may take longer, whereas visits to squares with only a small number of buildings may take less than half an hour.
What do I do next?
You can take part by registering on the BTO House Martin Survey. You’ll then be able to find and request a vacant 1km square near you, as well as find out more information about the survey.
Alternatively, please contact me directly and let me know which one (or more) of the 1km squares listed above appeal to you. The green markers represent the squares currently un-allocated, the blue markers are those that have already been allocated to a volunteer. If your choice has not already been allocated to another volunteer by the time I hear from you, then that square will be all yours! If you need more information before you volunteer, please don’t hesitate to get in touch with me for a ‘no obligation chat’.
mobile: 07828 093 613