Early Owl But No Lottis

Out Rawcliffe 0645 - as usual Will and I had set nets before first light to await the thrushes, but we soon found something other than early Redwings.

The Tawny Owls have been calling to each other for a week or two, usually further away from our nets, but one got a surprise this morning when in the almost total darkness the bird’s flight path was interrupted by a 60ft net. There is an overlap of Tawny Owl measurements, and although from its plumage characteristics we could tell it was an adult, the weight and wing length meant it could be a male or a female. Whichever sex the bird was it proved pretty feisty with the talons, so we took a leg out of the bird bag for ringing before looking more closely at the bird itself.

Tawny Owl
Tawny Owl

We had a quite productive morning of ringing with 29 birds caught, 28 new and one recapture, a recent Goldfinch. New birds: 10 Chaffinch, 5 Reed Bunting, 4 Redwing, 4 Lesser Redpoll, 2 Goldfinch and one each of Tawny Owl, Dunnock and Great Tit.

Redwing

The early thrush movement was probably the quietest of the autumn so far, with seemingly no more than 50 Redwing, 12 Fieldfare, 5 Song Thrush and a couple only of Blackbirds on the move soon after dawn, then virtually none during the remainder of the morning. The Chaffinch passage was similarly down with our estimate of c80 only during four hours. The trapped Chaffinches included a couple of larger males, perhaps a sign that more northerly individuals are beginning to spread from the south and east of the UK.

We noted an increase in both Siskins and Lesser Redpolls this morning, with small parties and numerous calls of both species, at times intermixed or accompanying Goldfinches. Our estimate came to 40 Siskin and 35 Lesser Redpoll, but the Lesser Redpolls are more easily caught than the Siskins. We added 5 more Reed Buntings to our autumn total and estimated the species throughput this morning at 10 or 12 in addition to the 5 caught.

Lesser Redpoll

Apart from the endless flights inland of approximately 2000 Pink-footed Geese, this morning’s birding was quiet: 1 Kestrel, 1 Buzzard, 11 Snipe, 1 Corn Bunting, 12 Whooper Swans and an uncounted number of Grey Partridge calling invisibly before dawn. Thankfully a roving flock of 26 Long-tailed Tits did not find one of our mist nets.

Long-tailed Tit