First and last dates of migrant birds in Yorkshire up to 2016

Geoff Dobbs has compiled data on the first and last dates on which some common migrant birds have been recorded in Yorkshire from the 1970s until 2016. This is a work in progress and will be kept up to date, with data from 2017 and 2018 to be incorporated.

  • click here to download a list of the earliest and latest dates recorded during that period. 
  • click here to download a list of the average first and last dates. 
  • click here to download a master file containing all the early and late dates for each year

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