Hans et al, You will need to design or modify so that the introduced Eurasian species Passer domesticus, the (in N.Y. City) too-familiar "House Sparrow" is not the sole species taking up residence in your bird houses, which is likely unless the houses are constructed so as to specifically exclude them. They may be on the decline in parts of their native range in the "old world" but here in the "new" they are a major pest and do interfere with native N. American species in many areas - by being much more aggressive (here in America) & for other ecological reasons. I suspect you will be getting more input from others on this subject. It would be nice if species such as Barn Swallows can be attracted to nest by the Gowanus canal. To have Purple Martins nest would be a triumph, & to get nesting bluebirds there would be a near-miracle! (Even though the latter can, & have nested, in N.Y.C. albeit in much greener surroundings. Purple Martin is a decidedly rare NYC nester.)
The nest houses would need to be checked periodically through all 4 seasons (!) to see if House Sparrows are in them, then decide if you simply want to let them be, or actively prevent them from nesting in your houses, & there are typically European Starlings in & around many Purple Martin nest colonies in the NYC area. Good luck, Tom Fiore, Manhattan >> << On Aug 5, 2009, at 9:59 AM, hans hesselein wrote: From: hans.hessel...@googlemail.com Subject: [nysbirds-l] Brooklyn - Gowanus Nest Colony Date: August 5, 2009 9:59:24 AM EDT To: NYSbirds-L@cornell.edu Reply-To: hans.hessel...@googlemail.com All, I am involved in an informal birdhouse installation project along the Gowanus Canal in Brooklyn. The project is both an art installation as well as a habitat development initiative. We have been attempting to enhance wildlife habitat along the Canal with beautiful birdhouses that will be attractive to both the people living in the neighborhood as well as cavity nesting birds that might live in the region. We are a group of designers with extremely limited knowledge of the local bird populations, and so we would like to work with some interested local bird enthusiasts to help make this project more interesting and effective. We recently teamed up with the Gowanus Canal Conservancy and plan to jointly host a public workshop to assemble and install 30 birdhouses along the canal in 2 work sessions - 1 in August and 1 in September. If anyone is interested in helping out in any capacity, please send me an e-mail. We really need assistance with the following tasks: Identifying local cavity-nesting bird populations to design houses for Identify design criteria for each bird population and design appropriate houses Site the houses in the most appropriate locations along the Gowanus Canal Develop interpretive signage that describes local birds and the project I look forward to hearing back from anyone interested in creating more spaces for birds to live in New York City. If you are interested in seeing our previous work, please visit the following website: http://www.thiscityismine.com/gowanus/ Thank you for your time. Regards, Hans -- hans hesselein, LEED AP 255 18th st. # 204 brooklyn, new york 11215 p 609 954 3988 hans.hessel...@gmail.com ________________________ -- NYSbirds-L List Info: http://www.NortheastBirding.com/NYSbirdsWELCOME http://www.NortheastBirding.com/NYSbirdsRULES Temporary archive: http://birdingonthe.net/mailinglists/NYSB.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --