What are impaler birds?

Answer 1

Some shrike species such as the loggerhead shrike or the fiscal shrike are variously known as the impaler bird. It is also known as the 'butcher bird', but it should not be confused with Australia's butcher bird.

The loggerhead shrike has a sharp, hooked beak. It gained its nickname because of the way it uses its hooked beak to break the spines of its victims, which range from insects, lizards and rodents to even other birds. It then impales them on sharp spiky thorns or barbed wire to hold them while it disembodies or dismembers them. Larger prey may be left to decay, as this softens the flesh.