The pair will barely have had time for a breather yet though as they prepare their nest ready for the first egg to appear in just a few days' time.
Visitors to the RSPB viewing centre at Pont Croesor near Porthmadog can use high-powered telescopes to enjoy a close-up view of these stunning birds and their new brood over the coming months.
We'd love to hear from you if you happen to drop by the site between now and September. You can keep us posted on the ospreys' progress using the comment form below.
In the mean time...
Did you know?
- Following their return to the nest, the osprey pair will mate about once every hour until the first egg appears.
- Once the chicks have hatched, the male osprey will need to catch enough fish to feed the whole family. That's about eight a day.
- The osprey nest is huge, about six feet in diameter.
- Before leaving the nest chicks reach adult size with a wing span of five foot.
- A record three chicks fledged the Glaslyn nest last year, taking the total to nine since the ospreys first arrived at the site.
Want to know more?
For all the lowdown on the Glaslyn ospreys read this excellent article from the BBC North West Wales website.
Watch an archive clip and view more images on the BBC Wales Nature website.
See if you can catch a glimpse of the ospreys via the BBC North West Wales nestcam.