A lover of water, there is a pair of Grey Wagtails residing at the stream that flows beneath the Concourse. The Grey Wagtail is a cousin of the very common White (Pied) Wagtail that bobs about the square in front of the Library.
White Throated Dipper (or Dipper to his friends) is less common but a solitary one took up residence at the stream near the Bank of Ireland.
Goldcrest is the smallest bird in Ireland and Europe (even smaller than the Wren). There was a pair nesting near the Library Loading Bay last year.
With less people on campus at the moment, you are more likely to spot a Treecreeper near the University Quadrangle as it searches for grubs on the tree trunks.
Moorhen often travels upstream from the canal and seem quite fond of the section that runs alongside the new Human Biology Building.
Mallards wander across all the waterways in the University and are very memorable in Spring with their brood of chicks in tow. We think a pair nested in the stream between the Concourse and the Kingfisher last February. The database mentions interestingly that all domestic ducks actually derive from mallards.
The Swift is a remarkable summer migrant, spending almost its whole life in the air. Its distinctive scythe shape can be seen high in the sky above the campus from April onwards. Its more familiar relation of course, the Swallow feeds on flying insects all around the University, particularly in the evenings or after rain.