A bird control spike, also known as an anti-roosting spike, pigeon spike, or roost modification, is a device consisting of long, needle-like rods used for bird control. Bird control spikes can be attached to building ledges, street lighting, and commercial signage to prevent wild or feral birds from perching or roosting. Birds can produce large quantities of unsightly and unhygienic feces, and some birds have very loud calls that can be inconvenient for nearby residents, especially at night. As a result, bird control spikes are used to deter these birds without causing them harm or killing them. In an unexpected adaptation, some birds have collected the spikes and used them in their nests.

The Houghton Highway is a 2.74 km (1.70 mi) reinforced concrete viaduct, the second bridge to be built across Hays Inlet at Bramble Bay connecting the cities of Redcliffe and Brisbane in Queensland, Australia. The bridge, along with the third bridge, the Ted Smout Memorial Bridge, were the longest bridges in the country until 27 March 2013, when the Macleay River Bridge opened in Kempsey, NSW.