time collecting valuable behavioral information. .After a fun introduction to the Rock Dove and close up observation of them while feeding, children are taught to identify the eight colour groups (called morphs) established by the Lab as well as various forms of aggressive and courtship behaviours. They are taught how to record their observations which will be systematically analyzed to answer such questions as whether certain morphs are dominant in feeding or courtship or whether certain colours have a breeding advantage in cold climates. (adapted from a Margaret Barker article titled Science In the Streets in Birdscope 8:1)

A CLEAR CASE OF HARASSMENT by B.F. Kingsbury and other strange happenings

Author's Note: All but the item B were observed during the summer of 1993.

l. A Great Black Backed Gull harassing an Osprey, who was carrying a fish about six feet above the water. Each time the gull dove at the Osprey, the Osprey would turn its head upward and strike the Gull.

2. An Osprey harassing a passing Bald Eagle. The presence of the two was primarily responsible for the thirty-five feeding Great Blue Herons taking off simultaneously, looking for all the world like a swarm of giant mosquitoes.

3. An Osprey harassing a Bald Eagle at about one thousand feet, an unusually high altitude. 4. A Great Blue Heron catching and

eventually eating a 12-inch flounder. He repeatedly picked it up from the beach, dropped it, and pecked at it although the fish was clearly dead. Was he trying to break up the head bones to soften it and make swallowing it easier?

5. A Common Tern (RGK) or Ring—billed Gull (BFK) harassing a hovering and diving Belted Kingfisher on two different occasions.

6. A flock of eight crows harassing a Raven. Repeated diving

drove the raven to the ground where it hunkered down in the long grass and reached up with its head and bill to strike at the still diving crows, amidst deafening noise and complaints. They finally broke off and some time later the Raven flew off apparently unharmed.

7. Two Osprey simultaneously harassing a Bald Eagle, who was perched on top of the left-hand most electric pole at MacAulay’s wharf.

8. One Osprey harassing another, who had just caught a fish. The attacking bird dove on his target with wings drawn very close to its body, not the same configuration as when diving for a

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