PHYS ORG Tricoloured Bumble bees - Bombus ternarius - forage on chives in an organic garden in Manitoba. Circa 2000. A PinP photo. When you were young, were you the type of child who would scour open fields looking for bumble bees? Today, it is much harder for kids to spot them, since bumble bees are drastically declining in North America and in Europe. More here. RELATED: Plight of the Humble Bee - Canadian regulators refuse to protect a priceless pollinator from a known toxin. Recent research contradicts a claim by the chemical giant, Bayer, that its newest bug-killer is safe for bees.