Discover and read the best of Twitter Threads about #BTOscience
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1 #BOUsci21 #Sesh1 // If you’ve read somewhere that UK bird species are increasing or decreasing, chances are that information has come from the UK Breeding Bird Survey. @BBS_birds is run by BTO in partnership with JNCC and RSPB. #BTOscience 
2 #BOUsci21 #Sesh1 // Since 1994, a loyal team of skilled volunteers has surveyed a stratified random sample that has grown to >4000 1-km squares. Twice each spring, they count birds along transects and assign them to distance bands to assess detectability #BTOscience
3 #BOUsci21 #Sesh1 // From these data we produce population trends for around 50% of UK breeding bird species. These account for over 95% of all individual birds in the UK, so BBS tells us a lot about our bird populations: bto.org/bbs-results #BTOscience
The results for waders from the 2015/16 Non-Estuarine Waterbird Survey, NEWS III, have just been published in the @_BTO journal Bird Study. Most of the wader species of the open coast are declining. Let’s take a closer look at some of the results ⬇️ #WeBSOnRocks #BTOScience 1/13
The most abundant wader in the 2015/16 NEWS III survey of the open coast was Oystercatcher. Average density was highest on the Welsh non-estuarine coast. #WeBSOnRocks 2/13
A high proportion of Ringed Plover in mid-winter use the non-estuarine coast. Analysis of density on stretches also counted in the earlier non-estuarine surveys indicated a density reduction of 72% in England. #WeBSOnRocks 3/13
