Massive declines of snipe オオジシギ on the breeding grounds in 2020

The Wild Bird Society of Japan have finished analsying their results from the 2020 (boreal) spring breeding grounds surveys in Hokkaido. They surveyed a subset of the core sites that were counted in 2018 (roughly 10%). From those 2018 surveys, they derived a popuation estimate of 35,000 snipe.

They found significantly reduced numbers of snipe across these surveyed sites in May 2020 – the population estimate was around 20,000 birds or 42% less than in 2018. This reflects a massive decline in the species between the two years. While lesser numbers of sites were surveyed, the same population estimation method was used.

The WBSJ researchers were unable to account for this decline at local (Hokkaido) sites, and therefore conclude that the drought and major bushfires in SE Australia over summer 2019-2020 has impacted the breeding population.

You can find out more on the WBSJ website.

We have long known that snipe use alpine / highlands habitats but the size and distribution of the population is unknown. It seems likely that snipe using alpine wetlands have been impacted by the wildlifes. We hope to raise some funds through the bushfire recovery funding schemes to investigate these populations and determine the extent of impacts to both birds and wetlands.

The upcoming national surveys will be critical in determining the extent of the population decline and flow-on effects of the bushfires to populations at important non-breeding sites. I encourage everyone to set aside the surveys dates in their calendar. They are:

September 26, November 21 and January 23.

Never has the need for the nationally coordinated surveys been so strong. Of course, field work will only proceed in areas not subject to COVID19 restrictions.

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