Graham Knight

@grahamknight10.bsky.social

Hertfordshire Swift conservation, including Sawbridgeworth Swifts, Herts Bird Club, counting rookeries for a long time

Endoscopy for Swift boxes With the Swifts now gone, I have been trying out a £16 endoscope camera attached to my phone. Have been looking inside my Swift bricks and box. All it needs is a step ladder and a bamboo cane. Videos of results in the comments Also finds Lego under the sofa...

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This makes me very happy. The pair are still occupying the box after 5 weeks. They are not seen so often now as there is less need to defend the nest site from other non-breeding Swifts, but are still returning to roost each night some time after 9pm

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Lots of lovely Swift watching early this morning in the Park Drive area of Baldock, with 6 nests found, 4 of which were previously unrecorded. Also single nests confirmed in Walkern and Wallington. An extra bonus in Baldock was an active House Martin nest!

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Huge amounts of Swift activity at Redwood Court, Bishop's Stortford, this morning. A lot of bangers prospecting for nest sites, much to the annoyance of some of the established breeders. The best place to watch Swifts in the area?

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First Swift taxi of the year for me. This Swift was found in the street in Sawbridgeworth with a wound on the back. I took it to the brilliant South Essex Wildlife Hospital, where it joins 25 other Swifts already in their care. Grounded Swifts always need an expert rehabber

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Cranbourne Gardens, Welwyn Garden City at 6am this morning Probably 100 Swifts in the sky. Why are there so many? The "yearlings" are here for a very short time, perhaps 3 weeks, and will soon be heading back to Africa. Whilst here they cause mayhem!

My Swift nest survey this morning was in St Albans, where I recorded 14 new nests for 2026, 4 of them previously unknown. 34 so far this year in the city, with many more still to find Swifts really like the gable ends above the shops at The Quadrant

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After four years of trying I have a Swift in my box! I changed the call I was playing yesterday and the results were immediate, with two Swifts trying to enter straight away,and within 24 hours one was in. The other of the potential pair has been trying Over the moon! Playing calls is essential

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Herts Swift Nest Survey update As of 1st June, we have records of 321 Swift nests so far in the county. Now is the peak time to record them - all nest records welcome, and please don't assume we already know about particular nests

"Chimney" Swifts: unusual Swift nest locations found in Potters Bar: on the front of chimneys in a gap above brickwork. Confused as to the purpose of these chimney shapes But, a risky place to nest as Jackdaws also on many of the chimneys and the ledge above the nest is a perfect predator perch

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Survey work early this morning was in Stevenage, where it was cold and I didn't see a single Swift in the sky in 2 hours... Sounds bad? It wasn't as I got responses from 17 different nests when I played calls. 16 of these nests are repeats from last year, the other being a newly found one

After disaster in Sandon, I moved on to survey Royston and found 10 Swift nests. 5 of them were in Swift boxes, including 3 at the mill opposite the railway station, whilst 4 natural nests were at the excellent Princes Mews colony

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Blocked Swift nest number 7 this year for Herts is in Sandon. It is the only known nest site in the village, although there could be others not yet found Swifts have probably nested under the eaves of this old cottage for many years

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Also pleased to see Swift boxes in Borehamwood. Shame not Swift bricks integrated into the wall. House Sparrows ignoring the Sparrow Terraces and using the Swift boxes instead, which is why they should always be required on new developments

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Delighted to find a new colony of Swifts in Borehamwood this morning thanks to a tip off. 3 nests plus 5 more in the other known colony in the town, all found by call and response. All nesting in brick air vents and very vulnerable to be blocked. I am now up to 46 nests found so far this year

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Herts Swift Nest surveys for 2026: six days in, and here is the fourth nest site from last year that has been blocked. Not illegal as Swifts have not yet returned here. Property owner aware and not interested in maintaining the nest hole. This, not insects, is the reason Swifts are in decline.

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