For anyone who visits Llanishen & Lisvane Reservoirs, the list below should be of interest. It has been complied by 3 regular birders there – Nick McNeil-Watson, Phil Bristow and Simon Lawrence. It’s a complete list of all species seen at the reservoirs in 2024, and illustrates its importance as an oasis for birdlife in the city. Well done guys!
The embedded pdf below is scrollable – the list is 2 pages.
Glamorgan Bird Club 
Great to see this list of species and to note that the locality has returned to be attractive to so many species after the years when Llanishen Reservoir was drained. I wonder why several passerine species though were only seen as “singles” (eg, Wren, Blue Tit).