Monday 18 March 2019

Marsworth Reservoir 18th March 2019 - The Chiffchaffs are here

After weeks of wet and windy weather today was the first chance for ringing.
With five nets and tape lures we caught 15 birds including 5 new Chiffchaff and a Blackcap. The Chiffchaff were not carrying any fat. All but one of them were birds more than one year old and probably male based on wing length. This is expected because the males usually arrive ahead of the females. We also trapped a 4 year old Song Thrush with very pointy tail feathers. The area of reed cleared in the autumn has flooded as the water level at the Reservoir has risen. We caught a new Water Rail at the edge of the flooded area. Two Red Kites circled all morning and two Goldcrests sang piercingly from two ivy-covered trees either side of where we sit. The reed buntings are still using the hopper for seed and we trapped two that were already colour-ringed. No sign of any Cetti's Warbler.

Flooded cut reed bed

Chiffchaff
Adult Song Thrush showing unusually pointed tips to tail feathers. 

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