Today, Sjoerd, Mark and I were doing some monitoring for the national Big Day (already in 3 weeks!), so we went to the Maashorst for our forest birds, check a location of Middle-spotted Woodpecker (with succes) and check the location for Crested Lark (also with succes). As the weather was quite precarious (sunshine and hail switched turns...), we decided not to go to the Biesbosch for more checks. Instead, we saw on the internet that next to the Crested Lark there was an area where Savi's Warbler (Locustella luscinioides) was heard singing for almost a week already. As this bird can be difficult sometimes, we would like to have a back up during the Big Day. This was a welcome one, as it was 1 minute off route.
It turned out to be an easy individual which was frequently singing and chasing a female. It was the first time I observed a Savi's Warbler start their song. The motor in their throat has to start like an old diesel: "raket-tak-tak-tak-tak-vrrrrrrrrrrrrrrrrrrr"
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