Bath Peregrine Chicks ringed

The Bath Peregrine chicks were ringed this morning, by a licensed BTO ringer. We are delighted to report that all four chicks were found to be very healthy. Each was ringed with a uniquely numbered small metal BTO ring, and also each was colour-ringed, with a light-weight darvic (plastic) coloured and uniquely lettered ring to allow identification of each individual throughout its life without the need to disturb or catch it. The Bath nest this year contained three female chicks: ringed PW, PX and PY and a single male chick: PZ.

8 Responses to Bath Peregrine Chicks ringed

  1. I am having a wonderful time watching the growing family. There’s nothing wrong with their digestive systems as both ends appear to be in regular working order. Is it common for a chick from a previous brood to be a co-parent and assist in feeding?

    • Hi Michele. It is very unusual behaviour and we are curious to see how this plays out over the course of the breeding season, especially whether the young KP’s attitude (or the adults towards him!) changes when this year’s chicks fledge. Having done some research, I have discovered that this behaviour has been reported before, and seems more common in certain populations (i.e. Peregrines in North America) and more common where population levels are healthy – there are fewer opportunities for juveniles to find their own territories, especially in their first year or so, and so co-operative breeding is more likely to happen. Still, a rare thing though. We watch with interest!

    • From the data I captured on plumage development during the ringing process, I assessed the male to be the oldest of the quartet. He looks, as you say, like a “little male chick” but in fact his three female sisters are all pretty large units (not quite up to GA’s standard), so they make him look smaller than he is. Feisty little chap too!

        • At the request of the British Trust for Ornithology we do not record the ringing process. In addition, while the chicks are being removed from the nest and returned we disable the live feed. Every effort is taken at all stages to ensure the stress levels of the chicks are kept as low as possible. On removal from the nest [by an approved individual working under a Schedule 1 Disturbance Permit]the chicks are placed in BTO specific to purpose cotton bags, and then each into a dark rucksack. Reducing the light levels keeps then calm. Each bird is removed from its bag in turn, processed and returned. The process is not rushed, but is conducted in a timely fashion to ensure the chicks are out of the nest for the minimum amount of time. This year at Bath we timed it perfectly: the chicks had been fed and were [relatively] subdued, and the adults were elsewhere, totally unaware of the disturbance.

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