Jabruson / Common House Martin (Delichon urbicum) flying above pile of hardwood timber logs in storage depot. Lope National Park, Libreville, Gabon.

Jussi Murtosaari / Eastern baton blue butterfly (Scolitantides vicrama), male, Finland, June.

Jussi Murtosaari / Eastern baton blue butterfly (Scolitantides vicrama), male on flowers, Finland, June.

Jussi Murtosaari / Eastern baton blue butterfly (Scolitantides vicrama), male at Mountain Everlasting (Antennaria dioica), Finland, June.

Jussi Murtosaari / Eastern baton blue butterfly (Scolitantides vicrama), male feeding on Mountain Everlasting (Antennaria dioica), Finland, June.

Silvia Reiche / Baton Blue (Pseudophilotes baton) butterfly, France

Jussi Murtosaari / Eastern Baton Blue (Scolitantides vicrama) southwest Finland, June.

Jussi Murtosaari / Eastern Baton Blue butterfly (Pseudophilotes vicrama) female, on flower, southwest Finland, June.

Silvia Reiche / Baton Blue (Pseudophilotes baton) butterfly with open wings, Netherlands

Silvia Reiche / Baton Blue (Pseudophilotes baton) butterfly on bramble stalk, Netherlands

Silvia Reiche / Baton Blue (Pseudophilotes baton) butterfly on bramble stalk, Netherlands