When to use a tripod, monopod, beanbag or other camera support

Male urban peregrine falcon - a shot like this taken at 1200mm (600mm + 2x converter) simply can't be taken without a tripod. Nikon D800E, 600mm f/4 lens, 1/400sec , f/11, ISO 1600, Manfrotto 055CXPRO4 carbon fibre tripod with Wimberley Head Tripod? Monopod? Gorillapod? Baffled? Read on! Whether [...]