Buff-tailed bumblebee
Spot these giants of the bumblebee world during springtime. They can be seen buzzing from flower to flower getting their pollen fix.
Buff-tip moth
It is so easy to miss this clever little moth. It is a master of disguise, blending in perfectly as it looks just like the twig of a birch tree! Flying only at night, the buff-tip moth can be seen from May to July.
Bugle
Often found carpeting damp grassland and woodland clearings, the blue flower spikes of bugle are very recognisable. A short, creeping plant, it spreads using runners.
Bulbous buttercup
The bulbous buttercup has the familiar butter-yellow flowers of its namesake, but grows from a bulb-like 'corm' (a swollen underground stem). Look for it on chalk and limestone grasslands, and along verges.
Bullfinch
The rose-red breast, large black cap and thick bill make the bullfinch easy to identify. A plump-looking bird of woodlands, hedgerows and orchards, it also frequents gardens.
Bullhead
Living up to its name, the bullhead has a characteristically large, flattened head and a tapering body. Look out for it in fast-flowing, stony rivers and streams.
Bumblebee mimic hoverfly
This furry hoverfly does an impressive job of impersonating a bee.
Burnet companion
This day-flying moth is found on flowery meadows, often in the company of other moths and butterflies.
Bush vetch
A scrambling plant, Bush vetch has lilac-blue flowers. It is a member of the pea family and can be seen along woodland edges and roadside verges, and on scrubland and grassland.
Butterfish
The slippery butterfish is a common sight in rockpools all around the UK. Look out for the distinctive black spots on their backs that look a lot like eyes!
Buzzard
Listen out for the cat-like, 'kee-yaa' calls of the buzzard as it soars high over farmland and woodland. Once suffering from severe persecution and pesticide poisoning, it has made a stunning comeback to most of the UK.
By-the-wind-sailor
These mysterious and beautiful creatures rely on warm ocean currents to ‘sail’ them around the world... not a bad life?