Birds. It has been an excellent year for warblers! Duncan’s request for Dawn Chorus recordings from mobile phones provided 24 contributions and the outstanding result was that 11 had Blackcaps singing in them. Blackbirds were found on 17 and Wrens on 16. One had a Garden Warbler – fairly unusual, but another one, heard in Paradise, made it onto Radio 4 with Tony Jupiter praising the green spaces of Cambridge. A Willow Warbler was around between 3-7th June on the edge of Trumpington Park & Ride car park (Hugo) and Chiffchaffs are also abundant.
In spite of problems with the male, a city Peregrine was seen carrying feral pigeon prey over Market square (Guy). The out-of-town pair have also done well: by 18th, all 3 chicks were fledged and had left the nest. They will probably be around for the next few weeks before being driven off by the parents (Norman). A Barn Owl was seen hunting over Grantchester Meadows on Friday 29 June (Hugo). Also, a Cuckoo was noisily making his presence known on 10th to the South of Trumpington Meadows (Mo).
Grey Wagtail Norman De’Ath
Earlier in the year, a pair of French Partridges turned up in Newnham and recently reappeared with 3 young in tow. At Byron’s Pool was great to see a male Grey Wagtail on the lily pads.
Val’s early morning rowing turned up lots of new arrivals on the river: Herons of various vintages, Swans with Cygnets (3 different clutches of 1, 2 and 5 near Stourbridge Common), Moorhen with 2 teeny babies near The Plough in Fen Ditton, a set of Ducklings (6, newly hatched, 5 brown and 1 yellow) and House Martins hunting over the water. For further entertainment, there was a Bullock in the river, being patiently retrieved by Council workers. She comments that there were far fewer Swifts than before and it does seem to be a bad year for them, though the Owlstone Rd pair are feeding 2 chicks (Pam).
Mammals On 11th, a nocturnal trip through Paradise produced recordings of 6 species of Bat (Paul). These were Common Pipistrelle, Soprano Pipistrelle (lots), Daubenton’s, Brown Long-eared, Noctule, Serotine. Other mammal records were the 2 Hedgehogs which returned to Maggie after a 10 month absence and the Muntjac which leapt over Ron’s deer fence yet again!
June N asks, “Does the sighting of a Grass Snake among some ivy near a pond in Chesterton deserve a mention (about the diameter of a good sized thumb)?” It certainly does – I reckon to see one every 10 years if I am lucky. I did recently disturb a black Toad under the dustbins, though.
Wool Carder Bee Rhona Watson
Mediterranean Spotted Chafer Oxythyrea funesta Rhona Watson
Invertebrates. Rhona sent a picture of a Wool Carder bee on Lamb’s Ear – more evidence of Jesus College’s rich diversity. Then a new record for Cambridge, the Mediterranean Spotted Chafer Oxythyrea funesta – a small chafer probably imported to Jesus College on a rootball. They are common on Continental Europe, but with few UK records (Rhona). A Hummingbird Hawk-moth appeared on my honeysuckle for a few minutes.
Lesser Stag Beetle Annette Shelford
Urophora cardui, a thistle gall fly
A Lesser Stag Beetle arrived in a moth trap in Chesterton (Nets) and a fly was snapped in Cheney Way (Simon). This was identified as Urophora cardui, a thistle gall fly. The female lays her eggs in thistle flower heads, usually Creeping Thistle, causing damage to the seeds. They are sometimes used in thistle weed control.
Dragonflies. In early June, Bill had Broad-bodied Chasers mating over the garden pond. Scarce Chasers were found at Fen Ditton and a colony of Variable Damselfly on Ditton meadows. Eddington lake has now got a good population of Damselflies and Dragonflies while Byron’s pool has masses of Banded Demoiselles.
Emperor Dragonfly Duncan Mackay
Butterflies Trumpington Meadows is a huge success story. The wildflower meadows are superb and besides the recent appearance of Small Blue butterflies, Mo sent the following list: Large Skipper, Small Tortoiseshell, Meadow Brown, Small Heath, Painted Lady, Common Blue. Marbled White butterflies were reported from Coldham’s Common.
Marbled White Paul Rule
Large Skipper Mo Sibbons
Moths Some recent finds illustrated below (Paul).
Spectacle moth Abrostola tripartita Paul Rule
Glyphotaelius pellucidus Paul Rule
Cherry bark Tortrix Limnephilus lunatus Paul Rule
Fungus From sublime to ridiculous in Paradise? The mildew Podosphaera filipendulae on Meadowsweet (Chris) and the gigantic Chicken of the Woods on a Willow tree were both observed on the riverside path in May Week, as punters enjoyed the post-exam sunshine.
Chicken of the Woods
Podosphaera filipendulae Chris Preston
And finally, a really nice bee orchid on Trumpington Meadows (Norman) and others reported at Nuttings Road (Guy).