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Mike Dadswell of Acadia University Biology says that every year at this time of year there is a blocked migration of Atlantic sauries (blocked by the causeway). As the water temperature gradually decreases, millions of the sauries end up dying there and then washing up against the causeway in a very thick windrow of carcasses. This in turn attracts scavenging birds like gulls, eagles, etc. These foraging birds are then road-killed along the causeway, and perhaps the wires also play a role? The fact that the behaviour of the sauries has not changed since the causeway was built (1950s?) must be a testimony to how powerful the reproduction of the species is in most years. Surviving sauries migrate south along the U.S. eastern caost, where their reproduction occurs. Cheers? from Jim in Wolfville ---------- From: Jeannie <jeannies@ns.sympatico.ca> Reply-To: naturens@chebucto.ns.ca Date: Mon, 13 Nov 2006 07:31:34 -0400 To: naturens@chebucto.ns.ca Subject: [NatureNS] dead birds on causway Hi, I counted 30 dead birds on the Canso Causeway.Does anyone know why this is? Does it have anything to do with the wires? Thank you,Jeannie Jeannie Shermerhorn,Port Hawkesbury Cottage....Cape George,Cape Breton jeannies@ns.sympatico.ca
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