House Martin Survey 2015
There has never been a national House Martin survey before, previous population estimates have been derived using statistical methods from census data. In order to produce a population estimate as a baseline to measure future changes, there will be a survey in spring and summer 2015. There will be randomly selected squares to cover.
International Swan Census 17–18 January 2015
Using a similar approach to the Golden Plover Survey in the previous post, there will be an opportunity to contribute records of Whooper and Bewick's Swans through BirdTrack (www.birdtrack.net).
House Martin Survey 2015
Posted by YorkRR at Wednesday, September 03, 2014
The BBS report for 2013 has been published and will be arrive with volunteers shortly. It can be seen online now at www.bto.org/bbs-report-13 which will open up the pdf. Previous reports can be accessed from www.bto.org/bbs-report.
A recent interesting BTO press release shows how data can shed light on changes in populations detected by the BBS. This is about declines in all three species of wagtails that breed in the UK: http://www.bto.org/news-events/press-releases/tale-three-wagtails-familiar-species-decline
Posted by YorkRR at Saturday, August 30, 2014
Over the two winters of 2012/13 and 2013/14, observers in the York Region were involved in the Winter Thrush survey to study numbers and feeding behaviour of thrushes. This covered our resident thrushes as well as the winter visiting Redwing and Fieldfare, in addition Starling and Waxwing were recorded.
The core square part of the survey required counts between Christmas and the early part of January and were randomly selected as part of the survey design. Otherwise methods were the same for these squares as for the squares selected by observers. Visits could be made between September and April, often people visited each month, occasionally more visits were done and sometimes not in all months.
In all, 22 core squares were covered and around 50 further squares selected by observers. That's a really great effort by all involved.
Posted by YorkRR at Monday, July 07, 2014
Advance news - a date of 14th March has been fixed for the next Yorkshire Conference for BTO Members. It will be held at Askham Bryan College near York so should be accessible for our regions' members. The agenda will include a number of speakers to be confirmed.
Posted by YorkRR at Tuesday, May 20, 2014
This week a new resource on the BTO website came online. It is called Bird Atlas Mapstore and complements the recent Bird Atlas. Here you can interactively browse maps from all the atlases.
Some of these are maps that couldn't fit into the books, including the 20-year change maps from the most recent atlas. With the ‘slider’ tool you can seamlessly view maps through time and see how bird distributions have changed.
Click on the following link to explore: http://blx1.bto.org/mapstore/StoreServlet.
Posted by YorkRR at Sunday, April 13, 2014
This spring and summer sees a survey of Peregrines as it is over a decade since the last one. The survey will have a site-based element, primarily covered by raptor groups, and a random square element as well as casual records through BirdTrack.
There will be about a dozen random 5x5km squares selected in the York Region. I am expecting that there will be a need to carry out a thorough search of these 3 times in the season.
If you are interested in taking part, please let me know.
Posted by YorkRR at Wednesday, February 19, 2014