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First sightings of year were on 15th March. Brimstone, Comma and Peaqcock. Cambridgeshire
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| Tortoiseshell first seen 15th March, photo 4 April | Grizzled Skippers Waterford Heath, Herts 19 April. Seen elsewhere later |
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| Orange Tips from 15th April. Photos from 19th onwards |
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| Green Hairstreaks from 20th April. Cambs on left (24th), Bedfordshire right (29th). Elsewhere later | Green veined White from 13th. This male on 29th |
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| Holly Blue from 20th April. Photo 29th | Duke of Burgundy, below Ivinghoe Beacon 29th April |
| Also seen in March but not photographed: Small White 31st. And in April: Large White (8th April), Speckled Wood (13th) |