The male summer Eurasian Linnet has a grey head, brown back, red head-patch and red breast.
Winter males, females and young birds lack the red, having streaked breasts and buffy underparts.

1st photo: Bargerveen Nature Reserve, Emmen, The Netherlands, 15 May 2018
2nd & 3rd photo: Lepelaarsplassen, Almere, The Netherlands, 11 July 2019
4th photo: Egmond aan Zee, The Netherlands, 30 May 2021
5th photo: Stellendam, The Netherlands, 24 October 2018