1st - May Day
1st - Stop Rosebank Prayer Vigil - Waterloo, London, Christian Climate Action
1st - 7th Hedgehog Awareness Week
1st-31st Plantlife's 'No Mow May'
1st - 31st Meat-Free May
1st-31st The Tree Council's seasonal 'Walk in the Woods' campaign - Walk Where You May
5th - Rogation Sunday
5th - 11th - International Compost Week
6th-12th National Hedgerows Week
7th - International Dawn Chorus Day
7th - 13th Amphibian Week
8th - David Attenborough's 98th birthday!
9th - Ascension Day
13th - World Migratory Bird Day
14th 15th - World Species Congress - IUCN
17th - Endangered Species Day
18th - Animal Advocacy in the Tapestry of Faith - Be Creaturekind at The Ava Summit USA
19th - Endangered Species Day
19th - Whitsun
20th - World Bee Day
21st - 25th Chelsea Flower Show
22nd - 29th Laudato Si week
22nd - International Day for Biological Diversity
23rd - World Turtle Day
23rd - Full Moon - Flower Moon
27th - 8pm BBC 2 Springwatch returns
29th - World Otter Day
31st - Every Flower Counts, (Plantlife's citizen science survey)