Over the weekend, a flock of porcelain birds will roost in the Santa Fe Railyard Park. Covered in cobalt images and silk-screened with poetry, newspaper articles, and photographs from the Iraq War, the birds are intended to provoke conversation about our bonds to one another in a time of war. Titled Birds in the Park, this project by Christy Hengst has been running for two years in more than 60 locations, including New York’s Central Park, on California beaches, in a sculpture garden in New Orleans, and at Chartres Cathedral in France. In Santa Fe, the birds are in the park (Guadalupe Street and Cerrillos Road) from 8 a.m. to 6 p.m. on Friday and Saturday, Sept. 24 and 25. They are back from 5 to 7 p.m. on Thursday, Sept. 30, at Tipton Hall, where Hengst gives a talk on the history of the project, using slides and stories. The lecture, sponsored by the Santa Fe Art Institute, begins at 6 p.m. Admission is $10, $5 for students and seniors. Tipton Hall is at the Santa Fe University of Art and Design (1600 St. Michael’s Drive); call 424-5050.