GOS is a charity. Donations are welcome and it is only £12 to join (for which you get the annual bird report, email updates concerning events and an invitation to attend all of our walks / field trips free of charge). Walks are £5 for non-members. We welcome members and non-members alike to the free online talks. For in-person talks there is a nominal fee of £1 on the door to help cover room hire.

We encourage all to join the society and contribute to the bird recording and conservation initiatives GOS promotes.

  • Form and function of feathers and moult

    Mark Grantham, Licensing and Engagement Officer at the British Trust for Ornithology will talk to us about the form and function of feathers and moult. Mark has been ringing for over 35 years and has been a ringing Trainer since … Read More

  • GOS Annual Quiz

    St Paul's Church Hall, De la Beche Road, Sketty

    Owain Gabb will be your host for our annual quiz. The cost will be £1 on the door.

  • Crofty Field Trip

    Leader: Barry Stewart 07730 502738 Meet at 08:00 at Crofty Industrial Estate SA4 3RS /// zaps.trophy.solve Parking is shown on the cover photo above (see red dot). This will be a high tide watch to see waterfowl (egrets, brent geese, … Read More

  • The storm-petrel

    St Paul's Church Hall, De la Beche Road, Sketty

    Dr Rob Thomas, author of a recent book on storm-petrels in the Poyser series, and a leading authority on European storm-petrel which he has studied for many years, will address us on the ecology of the species.

  • To Antarctica and back with Arctic Terns

    Dr Chris Redfern will talk to us about Arctic terns. Arctic terns are renowned for the global scale of their migration. The routes taken by individuals can be determined using small electronic ‘geolocators’ attached to a leg ring. These devices … Read More

  • Birds of the Pembrokeshire Islands

    St Paul's Church Hall, De la Beche Road, Sketty

    Dave Astins will talk to us about the birds of the Pembrokeshire Islands. The Pembrokeshire Islands and the waters around them are important for a wide range of seabirds. Internationally important populations of gannet, storm-petrel, Manx shearwater, puffin and lesser … Read More

  • Kenfig NNR and Sker Point Field Trip

    Join us for a walk around Kenfig and Sker. High tide is around 07:30, so please arrive and be ready to head off by 08:00. Bring warm clothing, a thermos and whatever food you will need. We will be out … Read More

  • Cudyll Cymru – a new dawn for monitoring raptors in Wales

    Charlotte Griffiths will talk to us about raptor monitoring in Wales. Online joining instructions are below. Charlotte is the BTO's Welsh Raptor Monitoring Coordinator, and a passionate raptor enthusiast. She an active member of the Shropshire Raptor Study Group, where … Read More

  • Pant y Sais Fen Field Trip

    Heil yr Ysgol, Jersey Marine

    Join us at Pant y Sais Fen, Jersey Marine, for an evening walk focussed on reed bed species including reed, sedge, Cetti's and grasshopper warblers, cuckoo and common waterfowl. We also expect species such as willow warbler and whitethroat around … Read More

  • Brecon and Llangorse Field Trip

    A trip up to Storey Arms, near Brecon to look for curlew, snipe, wheatear and ring ouzel before moving on to Llangorse Lake for species including osprey and goshawk. Other species are likely to include redstart and tree pipit. The … Read More

  • Nightjar field trip: Resolven

    A walk into the forestry at Abergarwed, Resolven, to watch and listen for nightjar. Other species that have the potential to be present include goshawk, crossbill, lesser redpoll, siskin, grasshopper warbler and a range of more widespread species. The event … Read More

  • Oxwich Marsh Ringing Demonstration

    Join Gower Ringing Group at Oxwich Marsh. The timing of the field trip should ensure that fledgling willow, sedge, reed, Cetti's and grasshopper warbler are likely, along with tits, finches, reed buntings and a variety of other species. Previous attendees … Read More