Residents of Reykjavik love to visit Lake Tjörnin to see the resident swans, geese, ducks, seagulls, pigeons and various other birds. Many like to bring their children to feed the birds on the weekends. I happened to be strolling past on a rainy weekday recently to witness some bird feeding - I'm not sure it is really healthy for the birds - but it is always quite relaxing to observe them all together. The bird dynamics on the lake are fascinating.