Ernie Janes / Yellow hammer (Emberiza citinella) perched on flowering plum blossom, England, UK, February.

Ernie Janes / Blue tit (Parus caeruleus) on Plum blossom against blue-sky, England, UK, February.

Pascal Pittorino / Crested tit (Parus cristatus) perched on a branch of plum blossom (Prunus domestica) in a garden, Var, Provence, France, March.

Ammonite / Honey bee (Apis mellifera) feeding from plum blossom, France, March.

Ammonite / Honey bees (Apis mellifera) feeding from plum blossom, France, March.

Ammonite / Honey bee (Apis mellifera) worker flying and feeding from plum blossom, France, March.

Ammonite / Buff-tailed bumble bee (Bombus terrestris) queen flying and feeding from plum blossom, France, March.

Ammonite / Buff-tailed bumble bee (Bombus terrestris) queen flying and feeding from plum blossom, France, March.

Ammonite / Buff-tailed bumble bee (Bombus terrestris) queen flying and feeding from plum blossom, France, March.

Ammonite / Buff-tailed bumble bee (Bombus terrestris) queen flying and feeding from plum blossom, France, March.

Aflo / Japanese White Eye (Zosterops japonicus) in Plum blossom, Yugawara Umebayshi, Kanagawa, Japan, March.

Jonathan Harrod / Silvereye (Zosterops lateralis) on cherry blossom in spring, Christchurch, New Zealand

Rolf Nussbaumer / Chipping Sparrow (Spizella passerina) perched on blooming Mexican Plum (Prunus mexicana) New Braunfels, San Antonio, Hill Country, Central Texas, USA

Rolf Nussbaumer / Carolina Chickadee (Poecile carolinensis), adult on blooming Mexican Plum (Prunus mexicana) New Braunfels, San Antonio, Hill Country, Central Texas, USA

Dietmar Nill / Two spot ladybird (Adalia bipunctata} on plum blossom, Germany

Gary K. Smith / Victoria Plum {Prunus sp.} in blossom, Springtime, Norfolk, UK, April

Nature Production / Daurian Redstart {Phoenicurus auroreus} with Japanese Plum tree blossom, Tokyo, Japan

Tom Vezo / Male Rose breasted grosbeak {Pheucticus ludovicianus} Long Island NY, in Plum tree blossom

Tom Vezo / Northern cardinal male amongst Plum blossom {Cardinalis cardinalis} Long Is, NY, USA

Juan Manuel Borrero / Plum tree blossom (Prunus domestica) Spain

Ashok Jain / Plum Headed Parakeet male. (Psittacula cyanocephala) India Feeding on Wheat crop. Also known as Blossomheaded or Blossom Headed Parakeets

Bengt Lundberg / Plum tree blossom with flying insect {Prunus domestica} Sweden

Will Watson / Damson blossom (Prunus domestica instititia) flowering in hedgerow, Herefordshire, England, UK, April.

Will Watson / Damson blossom (Prunus domestica subsp. instititia) growing in an orchard, Herefordshire, England, UK.

Rolf Nussbaumer / Pine siskin (Carduelis pinus) perched in blossoming Mexican plum (Prunus mexicana) tree. Hill Country, Texas, USA.

Rolf Nussbaumer / Mexican plum (Prunus mexicana) blossom. Hill Country, Texas, USA.

Rolf Nussbaumer / Ladder-backed woodpecker (Picoides scalaris) male perched on blossoming Mexican plum (Prunus mexicana). Hill Country, Texas, USA.

Nigel Cattlin / Blossom on a Victoria plum (Prunus domestica) tree in a mixed garden orchard on a fine early spring day before the leaves emerge. Berkshire, England, UK, April.

Nigel Cattlin / Blossom on a Victoria plum tree (Prunus domestica) in a mixed garden orchard on a fine early spring day before the leaves emerge. Berkshire, England, UK, April.

Nigel Cattlin / White flowers of a Victoria plum (Prunus domestica) with anthers, stamens, style and stigma, with leaves unfolding in early spring, Berkshire, England, UK, April.

Nigel Cattlin / White flowers of a Victoria plum (Prunus domestica) with anthers, stamens, style and stigma, with leaves unfolding in early spring, Berkshire, England, UK, April.

Nigel Cattlin / White flowers of a Victoria plum (Prunus domestica) with anthers, stamens, style and stigma, with leaves unfolding in early spring, Berkshire, England, UK, April.