Record bumblebees early in the season. In the long term, tracking the earliest dates on which different bumblebee species are sighted will provide data on how bees are reacting to changing climates.

All winter/early spring bumblebee sightings are very valuable. Submit records of the bumblebees that you observe online or via the smart phone app

Can you beat any current records?

True bumblebees

Common name Species name Earliest date recorded
Great yellow bumblebee Bombus distinguendus 1st April 1923
Garden bumblebee Bombus hortorum 8th January 2012
Heath bumblebee Bombus jonellus 6th February 2003
Red-tailed bumblebee Bombus lapidarius 5th February 1998
White-tailed bumblebee Bombus lucorum 5th January 1920
Bombus lucorum agg. 1st January 2014
Mountain bumblebee Bombus monticola 11th March 2012
Large carder bee Bombus muscorum 7th March 1997
Common carder bee Bombus pascuorum 5th January 2004
Early bumblebee Bombus pratorum 4th February 2000
Red-shanked carder bee Bombus ruderarius 1st April 1923
Shrill carder bee Bombus sylvarum 28th April 2011
Buff-tailed bumblebee Bombus terrestris 5th January 2013


Cuckoo bumblebees

Common name Species name Earliest date recorded
Barbut’s cuckoo bee Bombus barbutellus 3rd May 1926
Gypsy cuckoo bee Bombus bohemicus 25th March 2011
Field cuckoo bee Bombus campestris 9th April 2011
Red-tailed cuckoo bee Bombus rupestris 6th April 1975
Forest cuckoo bee Bombus sylvestris 6th April 1961
Southern cuckoo bee Bombus vestalis 19th April 1926