About the Garden Butterfly Monitoring scheme

Garden Butterfly Monitoring is a new scheme that the National Biodiversity Data Centre has initiated to collect valuable information on what butterflies regularly use gardens and how numbers vary across the country, and from year to year. Recorders are asked to register their garden on surveys.biodiversityireland.ie providing some information about the garden, then when weather conditions permit, carry out a 15 minute survey to count the maximum number of butterflies seen.  The results of any counts  that are completed are presented in the graphs below.

Garden Butterfly Monitoring was launched on a pilot basis in 2020 to test the methodology and gain feedback from recorders. The pilot demonstrated that the Survey was valuable and could generate important data on butterflies to complement the other butterfly monitoring schemes operated by the National Biodiversity Data Centre. You can download a report on the findings of the 2020 pilot here [Garden Butterfly Monitoring Scheme 2020 Report].  If you would like to participate in the Garden Butterfly Monitoring Scheme in 2021, instructions on the survey can be downloaded here [Download Survey Instructions].  To participate you must register your garden on the National Sampling Framework system. Details of how to register can be downloaded here [Download Registration Tutorial].

The National Biodiversity Data Centre have developed an eCourse for the Garden Butterfly Monitoring Scheme.

By going through this eCourse you will learn:

  1. How to identify the 20 garden butterfly species
  2. The methods for the Garden Butterfly Monitoring Scheme
  3. How to register your garden on the National Sampling Framework (video tutorial)
  4. How to submit your data (video tutorial)
  5. Butterfly identification support

Online training for Garden Butterfly Monitoring Scheme

Should you wish to provide feedback please send observations to butterflies@biodiversityireland.ie.

  • Number of butterflies


  • Number of butterflies




  • Participating gardens


  • No. 15 min counts each month


  • No. butterflies observed/month