Article content Environment and Climate Change Canada has ordered a halt to construction of the Trans Mountain pipeline through a forest in Burnaby, until the end of bird nesting season. The department said the order was issued following an enforcement officer’s visit to the site prompted by complaints that nests of the Anna’s hummingbird and other migratory birds were being damaged. We apologize, but this video has failed to load. Try refreshing your browser, or Trans Mountain ordered to delay pipeline construction in Burnaby bird nesting area Back to video “Given that it is nesting season, migratory birds are particularly vulnerable at this time,” it said in an emailed statement.