Whinchats and a Pied Flycatcher as autumn passage migrants arrived in our study area – see August Blog. A Pied Flycatcher on Coldham’s Common on 1st September (Rob Pople) is only the second I can remember in our study area. Two Whinchats at Hobson’s Park on 3rd September (Peter Bircham) (cbcwhatsaboutblogspot.com). A Wheatear was seen on the bare fields on farmland in the north west of our study area. A Nuthatch in St John’s College gardens (David Brown) is a welcome sighting of a bird that has bred widely in west Cambridge but seems to have disappeared.
There seems to have been an influx of Jays and many are moving through the City. This has coincided with groups seen together at Holme Bird Observatory on the North Norfolk coast with up to 40 present one day. Nine flew together over Chesterton on 29th September.
On the 10th September, a single Little Egret at Hobson’s Park and a flock of 16 Corn Buntings. There were lots of Chiffchaffs throughout the month: 3-4 in and around Logan’s Meadow, at least one ventured across the river to Tesco’s carpark off Newmarket Road. A tit flock in Logan’s had at least one Treecreeper. Towards the end of the month in the warm weather a Chiff could be heard singing regularly in Milton Country Park.
Fifty Golden Plovers over Trumpington (Doug Radford) signals the beginning of winter (cbcwhatsaboutblogspot.com).
Most winters a Woodcock will turn up in a Cambridge garden especially during freezing conditions. I was interested to read of a juvenile bird ringed at Holme Bird Observatory and found dead six years later at Tralee in southern Ireland. British tracked birds have also been recovered in central Asia. Where do our Cambridge birds come from? Redwings have been heard outside the city – it’s only a matter of time before we hear their night-time calls over the city (but, see the PS below!).
I’m never sure what to think of Greylag and Canada Geese in our study area; presumably all originally derived from feral birds. The flock of about 60 Greylags centred around Milton Country Park must have a considerable impact on vegetation on the lake margins. In Suffolk, it’s the breeding feral (?) Barnacle Geese that have multiplied over the last 10 years to flocks of several hundreds. I have seen small groups of Barnacle Geese in our study area in the past presumably from this feral population.
Dr Simon Gillings of the British Trust for Ornithology (BTO) is setting up a number of devices across the City to record the night time migration of birds over the city. Is Cambridge and our study area a major migration highway/flyway? This is one of the most exciting current ornithological projects and is happening here in Cambridge.
PS a major flyover of Song Thrushes and Redwings on the night of Sunday 6th October ahead of the very heavy rain early that morning.
Bob Jarman 6st October 2019