A Pair of swallows began building a nest in our garden shed around 3-4 weeks ago. The nest appeared complete about 2 weeks ago. Whilst building the nest I regularly saw them flying in and out of the shed and whilst I do still see them fly into the shed occasionally they seem to have reduced their visits. They spend most of the day out rather than actually in the shed. Today I popped a camera over the nest and took a photo to see what was inside and I got a beautiful picture of 5 lovely eggs. the nest was empty when I took a similar photo about 2 weeks ago.
I'm worried though that they don't seem to be sitting on the eggs at all. The weather is quite hot though.
Do you think the nest has been abandoned? Do you think the eggs could still hatch?