More Information on past events
Interesting pollinators in our local area
A talk given by Peter Marren in the Village Hall on 18th July 2024
Lady Slipper Orchid
Peter's talk was about the interesting pollinators to be found in our local area, together with displays of the cunning ways flowers attract them.
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He started by explaining the biology of pollination and the vital role played by insects transferring pollen grains from the male anther of a flower to the female stigma. Flying insects such as flies, wasps, beetles, butterflies and moths are all pollinators but hairy insects such as bees are the best for collecting pollen.
Flowers have evolved their shape, colour and scent to attract insect pollinators. Some flowers are specific to certain insects and humble plants can be disguised to attract different types of insect. Ivy bees for example feast almost exclusively on Ivy and the Clarks mining bee is very particular to catkins. More unusual pollinators highlighted include the Bee fly - which at first glance looks like a bee but is not.
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Flowers are designed for pollinators and have evolved in many ways to attract insects. Peter demonstrated how far flowers are prepared to go with examples from around the world. Insects can be attracted to shape scent, colour, including ultra-violet light which humans cannot detect. Some plants have evolved to attract one particular insects species; for instance the hawkmoth with its long proboscis is drawn towards flowers with a long corolla. Habitat destruction therefore not only threatens the flower, but also the pollinator that goes with it.
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Orchids are some of the most complicated of all for pollination due to their structures. In the case of the rare the ladyslipper orchid, the bee enters the lip, becomes trapped, and escapes by squeezing beneath the stigma and then an anther at one of the lateral openings at the junction of the bases of the lip and petals, delivering and removing pollen in the process.
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Other orchids shown by Peter included the Bee Orchid, Duck Orchid and Egret orchid, so named because of their looks.
The Best Plants for Bees
There is a huge choice of brilliant flower varieties when it comes to choosing plants that are most loved by bees:
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Best for a large variety of bees: shallow blossom plants, including daisies, zinnias and asters. Blue, yellow and, most of all, purple plants are thought to be the most appealing. Erysimum ‘Bowles’s Mauve,’ for example, is a fantastic, vivid purple, long-flowering plant.
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Best for long-tongued bee varieties: plants in the mint family: nepeta, salvia, oregano, mint and lavender, along with flowers with hidden nectar such as larkspur and snapdragons
Bees are at their most active from spring into early autumn. Plant a mixture of flowers that offer a source of food throughout the seasons.
Spring Plants for Bees
Bluebells, hellebores, myosotis (forget-me-nots), crocuses, muscari (grape hyacinth), mahonia japonica and rhododendrons are all excellent spring plants for bees.
Summer Plants for Bees
Alcea (hollyhock), Antirrhinum (snapdragon), Aquilegia, Aster, Delphinium, Digitalis (foxgloves), Fuchsia, Geraniums, Heather and Lavender are just some of the many good summer plants for bees.
Autumn Plants for Bees
Late-flowering nectar plants that are great for bees include abelia, Anemone Sylvestris, dahlias, salvias, sedum and Verbena bonariensis.
Winter Plants for Bees
With increasingly mild winters, it is getting more common to see the odd bee out and about, so do think about suitable winter plants too. Winter-flowering clematis, Erica carnea (winter heather), Hedera helix (common ivy), Lonicera fragrantissima (winter honeysuckle) and Mahonia are all great examples.
On the 7th March we were delighted to welcome Ailsa Claybourn to the Village Hall to talk to us about ‘Scintillating Swifts’. With a background in teaching, Ailsa ran successful bird groups at her school and now gives Swift walks & talks, volunteers with BBOWT and works at Thatcham Discovery Centre. Swifts are special and amazing birds – in an average swift life they will fly up to 2 million miles, reaching speeds of up to 69.3mph. They can fly up to 500 miles a day to feed their babies, and once fledged the youngsters may not land again for 3 years until they are ready to nest!
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Swifts do not like rain and live in the air – drinking whilst flying and sleeping in the air by going up to 3,000 metres and then shutting down half of their brain at a time as they fly.
Ailsa ran through how to identify Swifts, House Martins, Sand Martins and Swallows and let the audience hear their calls (including swift screaming parties). All these birds migrate from Africa to Europe to breed, taking up to 6 weeks for the journey and arriving in the UK from early April for swallows and house martins to mid May for swifts.
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As with much of our wildlife these birds are in significant decline due to lack of insects, storms and climate change (dry summers) which impacts on nest building with less mud being available. Swift numbers are down 62% since the year 2000.
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Ailsa ran through what we can all do to help these birds. She highlighted local projects – Hungerford Swift Town project and listed resources which provide help, information and support (see below). This includes what to do and who to contact if you find a swift on the ground because if grounded their legs are very weak and they are not able to launch themselves back into the air. Because of this weakness another fascinating fact about baby swifts is that they practice ‘press ups’ to strengthen their muscles before launching themselves from the nest when they fledge!
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Aisla explained about the different type of nests built by each species and showed designs for suitable nest boxes. For example homeowners can help swifts by including swift ‘bricks’ and swift friendly roofs into the home as well as the more conventional nest box designs. The ‘swift mapper’ website can be used to report swift nests and swift screaming parties, this site is also very useful when identifying risks to swifts with proposed building projects.
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We finished the evening with a short Q & A and Ailsa highlighted Swift Awareness Week this year from 29th June – 7th July. An example of a swift box was available to see on the night along with useful identification sheets and details of websites for organisations that support swifts, such as www.swift-conservation.org, www.hampshireswifts.co.uk, and Swift Town Hungerford facebook page.
Emergency help for Swifts, Swallows and House Martins
Each of the birds needs specialist care and must be helped by trained carers:
If you find a Swift or Swallow injured or on the ground, contact:
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RSPB https://community.rspb.org.uk/wildlife/f/wildlife-questions/44254/what-to-do-with-a-grounded-swift
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The Swift Conservation website also has advice and a list of carers
If you find a grounded or injured House Martin look on:
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https://housemartinconservation.com/ for advice of carers
Nest boxes
If planning to install your own nest boxes always research the siting for your box. These birds always try to return to the same area, so if trying to attract birds to a new site for swifts in particular it can help by playing recordings of their 'screaming parties'.
To build a Swift box look at https://www.bristolswifts.co.uk/swift-nest-box-design, or https://www.swift-conservation.org/Zeist-drawing.pdf. In addition there are many ready made designs available on Amazon.
Swallow nest cups are available from as little as £13.95 online, with similar prices for nesting cups for house martins.