Grebes breed on still or slow-moving bodies of fresh water. The dabchicks and the pied-billed grebe are most numerous on small waters with much emergent vegetation, the western grebe on large bodies of open water. Some species winter on sheltered coastal waters.
Total cost for removing the old tub and installing a new one can run $1,500-$5,000 or more but averages $2,500-$3,500 depending on the ease of access, local rates, the quality of the new fixtures, and the extent of the repairs/replacements for the walls, plumbing and flooring.
Thomas, I estimate that it could cost between $10,000 and $15,000 to replace a 2,500 square foot roof, which would be approximately $4-$6 a square foot. Obviously, the most accurate estimate for your roofing project may come from a roofing contractor who works in the Pittsfield area and has seen your house.