Billinge: 5th & 10th September 2018

September is a month when autumn migration is normally in full swing and even if one species doesn't deliver another usually does. However, this September is starting to look very different to those of the past 4 years at Billinge and although there is still time for things to change things don't look very promising at the moment.

5th September 2018
A morning that got off to a good start with a Song Thrush caught in the first net just as the last guy rope was being tied off. September sees British Song Thrushes starting to move and the first continental migrants arriving with this bird likely to be one of the former. After that it was generally a lacklustre session with the numbers bulked up by a few too many tits. If I had to pick a highlight it would be the capture of the first 4 Meadow Pipits of the autumn although 4 is a relatively poor total for this date in September. The biggest news, if you can call it that, was the near absence of Goldcrests with only 2 caught. Goldcrests usually start to move through the site in good numbers from the start of September so a total of 2 is well below the norm of the past 4 years.

Meadow Pipit 05/09/2018

Totals for 05/09/2018 were: Blue Tit 11; Great Tit 6;  Willow Warbler 2; Chiffchaff 6; Blackcap 4; Goldcrest 2; Song Thrush 1; Meadow Pipit 4; Chaffinch 1; Linnet 3.

10th September 2018
If the session on the 5th fell short of what I have come to expect from the site in September this one was even more disappointing. The near absence of Goldcrests of the 5th became a total absence with none being caught, seen or even heard. To give that some context last September saw 21 ringed on the 1st, 17 ringed on the 10th September and a total of 77 over the first 10 days. In 2016 it was a similar picture with 50 ringed over the first ten days of the month and no blank sessions. It is starting to look like Goldcrests were hit really hard by spell of severe cold weather back in March.
It is getting a bit late for Willow Warblers so the capture of 2 was noteworthy but the near absence of Chiffchaffs was far more unusual with none caught and only 2 heard all morning. Chiffchaffs numbers normally peak in September and a capture total in low double figures should have been on the cards. The quiet theme was also reflected in the visible migration with only a few Meadow Pipits moving. It was the quietest I have known the site to be in September by some margin and it is to be hoped the rest of the month doesn't carry on that way.

Totals for 10/09/2018 (retrap in brackets) were: Sparrowhawk 1; Blue Tit 4 (1); Willow Warbler 2; Blackcap 2; Dunnock 1; Meadow Pipit 7; Chaffinch 2.

One of the Blackcaps caught on the 10th was still largely in juvenile plumage which is suggestive of some very late breeding.

The last bird caught on the 10th was this juvenile female Sparrowhawk.