Eurasian coot
This is a noisy bird during mating, but its vocalisations are quite different from the Eurasian coot. It gives a fast "kerrre" like the little crake, a harsh "ka-haa" and a grunting hoot "oot oot" that suggests that the name "coot" might be onomatopoeia, but inspection of the etymology of "coot" fairly decisively negates any such suggestion.