Grey Butcherbird (Cracticus torquatus)
Other common names: Silver-backed Butcherbird, Derwent Jackass, Whistling Jack, Collared Crow-shrike, Grey Shrike.
Pied Butcherbird (Cracticus nigrogularis)
Other common names: Black-throated Butcherbird, Black-throated Crow-shrike, Break-o’day Boy.
- Occupy a number of different habitat types from rainforest, margins of forests and woodlands, open woodlands, coastal and inland scrub, riverine woodland, farmland and suburban areas with trees.
- An aggressive feeder, it preys upon small animals, including birds, lizards and insects
- Inhabit drier woodlands and forests, scrublands, pastoral lands with trees and suburban areas.
- An aggressive feeder, it preys upon small animals, including birds, lizards and insects.
- Breeding season occurs from July or August through to December.
- Nest consists of an untidy bowl of dry sticks lined with soft dry vegetation such as grass and bark. Nest is placed in the upright fork of a fork in a small tree or sapling, with trees in denser scrub preferred.
- Clutch consists of 3 to 5 eggs, pale brownish-green to pale brown often with a reddish tinge, approximately 31mm x 23mm and oval shaped.
- Females incubate the eggs for 25 days, with the young birds leaving after just 28 days.
- Juveniles remain in their parent's territory for about a year and help raise the chicks next season.
- Breeding seasons for Pied Butcherbirds varies throughout its distribution, with birds in the north breeding from May to November, and in the south breeding from August to November.
- Nest consists of an untidy bowl of dry sticks lined with soft dry vegetation such as grass and bark. Nest is placed in the upright fork of a fork in a small tree or sapling, clear of foliage and more than 5 meters above ground level. Prefers open areas for nesting.
- Clutch usually contains 3 or 4 eggs, sometimes only 2, which can be greyish-green to light olive to pale brownish-green. Slight lustre and spotted and blotched towards the larger end varying from blackish-brown to reddish-brown. Approximately 38mm x 27mm in size and oval in shape.
- Female incubates the eggs for 21 days, and young birds leave the nest after 29-32 days.
- More than one female may lay her eggs in the same nest.
- Butcherbirds are protected under state legislation and it is an offence to harm or interfere with their nests and chicks.
- Habitat modification in suburban areas has assisted the life history requirements of Butcherbird species. Areas previously suited to only a few birds are now able to support considerably higher densities.
- Feeding the birds may encourage individuals or family groups to stay in an area permanently as you provide a readily available food resource.
- Butcherbirds are territorial animals and will attempt to drive away anything which they feel is a threat to their nest and or chicks.
Living with Suburban Butcherbirds
So what can you do to try and deter an swooping Butcherbird in your yard?
- Don't feed the birds, as this should encourage them to stay within your area.
- Don't destroy the nest or interfere with the chicks. They only swoop while there are eggs or chicks in the nest. If you have a nest in your vicinity temporarily avoid the area.
- Clean up pet food and rubbish to avoid birds scavenging scraps.
- Informing neighbours and council of resident swooping birds and erecting warning notices may assist in awareness and areas to be avoided during breeding months.
- Maintain eye contact with the offending bird. In only the rarest cases will birds make contact with you if you are watching them.
- Carrying a hat, umbrella or alternate object which you can hold above you head can help in deterring birds from swooping. Walking in a group is also a great tactic, as birds often will only target individuals.
- Placing eyespots on your bike helmet, wearing sunglasses on the back of your head or keeping the bird in eye contact also helps prevent swooping.
Advice & Relocation
If your best efforts of deterring the bird fail then further advice or relocation may be your last resort. Ecologically-minded butcherbird advice, specialist trapping requirements, and ecologically sound translocation methods are employed by licensed professionals for effective Butcherbird relocation.
Trapping & relocation of the bird is done in accordance with requirements stipulated by the Environmental Protection Agency and permits are issued after stringent examination as to knowledge and suitability to actively manage conflict birds.
Every effort is made to ensure the birds are managed as to welfare, and to minimize any possible harm whilst being trapped, upon trapping, and through transit to a suitable release site. Sites for release are selected upon prior inspection as to their suitability for Butcherbird habitat.