Shooting of pest birds

Standard Operating Procedure – BIR001

Background

Pest bird problems are increasing in Australia, particularly with recent expansions in the grape and wine industry, and in the olive industry. More than 20 species of birds conflict with primary production by significantly reducing profitability of a wide range of crops in the cereal, horticultural and aquaculture industries. Over-abundant introduced and native species also compete with and displace less abundant native species, impacting on biodiversity.

Methods of pest bird control include nonlethal techniques such as scaring devices, chemical repellents, habitat manipulation, use of decoy food sources and exclusion netting. Lethal methods of control involve shooting, trapping and poisoning. In many situations lethal control methods have little effect on reducing damage. Shooting is used either to directly reduce numbers of pest birds through killing or more commonly as a scaring or dispersal strategy.

Shooting may have short-term advantages but the technique is often labour intensive, opportunistic and may have limited value in bird control.

This standard operating procedure (SOP) is a guide only; it does not replace or override the legislation that applies in the relevant state or territory jurisdiction. The SOP should only be used subject to the applicable legal requirements (including OH&S) operating in the relevant jurisdiction.

Application

  • Shooting should only be used in a strategic manner as part of a coordinated program designed to achieve sustained effective control.
  • A management plan that specifically targets the main pest species should be developed. Birds differ greatly in their ecology and behaviour and this influences the way in which they respond to different forms of control.
  • Problem bird species and the damage they cause includes:
    • Common starling: causes damage to fruit (particularly grapes and cherries), vegetable and cereal crops. Implicated in carrying and transmitting diseases to man and other animals. Competes with native species for nest hollows.
    • Common myna: causes damage to fruit and grain crops. Commensal roosting and nesting habits creates aesthetic and human health concerns. Competes with native species for nest hollows.
    • Sulphur-crested cockatoo, little corella: damages ripening sunflower crops, fruit and nut crops.
    • Galah: causes damage to germinating cereal crops.
    • Sparrow: causes damage to fruit vegetable, grain and oilseed crops; competes with native species for nest hollows.
    • Pigeon: roosting sites cause fouling damage (from build-up of faeces) in urban areas. Implicated in carrying and transmitting diseases to man and other animals.
    • Crows and ravens (corvids): consume fruits and grains. May prey upon sick, dying or mismothered lambs and can injure sheep.
  • Shooting is often used as a scaring strategy to train the birds to associate the sharp, sudden noise with real danger and subsequently, a fear of humans and human activities. Birds can be frightened away without attempts to kill them although small numbers of birds are usually killed with a view to enhance the scaring effect.
  • Shooting as a lethal method can be effective in reducing localised populations of birds when low numbers are involved. However, it is labour intensive, costly and rarely effective in achieving long-term reductions in bird numbers or associated damage. Other birds will often move into an area to take the place of those that are killed. Also, some species of bird, particularly parrots, learn to avoid shooters.
  • Shooting may actually increase the damage levels in some crops, where birds may drop the fruit or seed head they are feeding on when scared off, and then attack a new one on their return.
  • Control of pest birds must be implemented in accordance with any relevant State, Territory and Commonwealth legislation. Permits may be required for the control of some species. Contact the relevant State/Territory fauna agency for further details.
  • Shooting of pest birds should only be performed by skilled operators who have the necessary experience with firearms and who hold the appropriate licences and accreditation. Storage and transportation of firearms and ammunition must comply with relevant legislation requirements.
Long-billed corella

Long-billed corellas are declared pests in Western Australia.
Image: Gary Tate

Animal welfare considerations

Impact on target animals

  • Humaneness of shooting as a control technique depends almost entirely on the skill and judgement of the shooter. If properly carried out, it is one of the most humane methods of destroying pest birds. On the other hand, if inexpertly carried out, shooting can result in wounding which may cause considerable pain and suffering.
  • Shooting must be conducted in a manner which maximises its effect thus causing rapid death. This requires the use of appropriate firearms and ammunition.
  • Shooters should not shoot at a bird unless it is clearly visible and they are confident of killing it with a single shot.
  • The shooter should aim to have the bird in the centre of the pattern at the point of impact.
  • Only one bird should be targeted at a time. Shooting with a shotgun at a group of birds flying overhead often results in welfare problems as the birds aligned with the central cluster of pellets will usually be fatally injured, but those at the perimeter of the volley may only be hit be one or two pellets and stand a good chance of surviving. These birds are likely to experience suffering.
  • Wounded birds must be located and killed as quickly and humanely as possible with either a second shot preferably directed to the head or in restrained or immobile birds, a blow to the rear of the skull to destroy the brain If left, wounded birds can suffer from the disabling effects of the injury, from sickness due to infection of the wound, from pain created by the wound or from thirst or starvation if unable to drink or eat. Wing fractures, which increase the likelihood of being taken by a predator, are common in wounded birds.
  • A trained dog may be used to locate and recover wounded birds as quickly as practicable. The dog must be adequately controlled to prevent it from chasing or catching birds that are not wounded. Dogs should only be trained to retrieve wounded birds, under the direction of the handler, without causing physical injury to the bird. For further information on the use of dogs refer to GEN004 The care and management of dogs used for pest animal control.
  • If possible, shooting should be avoided at time when birds are nesting and there are dependent young present. If dependent young are found they should be killed quickly and humanely.

Impact on non-target animals

  • Shooting is relatively target specific and does not usually impact on other species. However, there is always a risk of injuring or killing non-target animals, including protected birds that have been mistaken for a pest bird. Only shoot at the target bird once it has been positively identified and never shoot over the top of hills or ridges as other animals or people may be out of sight beyond the hill in the danger zone.

Health and Safety Considerations

  • Care must be taken when handling birds as they may carry diseases such as psittacosis (chlamydiosis), aspergillosis, erysipelas, yersiniosis and salmonellosis that can affect humans and other animals. Routinely wash hands after handling all birds. Personal protective equipment, especially face masks, are recommended when handling bird carcasses to reduce the risk of contracting disease.
  • Firearms are potentially hazardous. All people should stand well behind the shooter when an animal is being shot. The line of fire must be chosen to prevent accidents or injury from stray bullets or ricochets.
  • Firearm users must strictly observe all relevant safety guidelines relating to firearm ownership, possession and use.
  • Firearms must be securely stored in a compartment that meets state legal requirements. Ammunition must be stored in a locked container separate from firearms.
  • Adequate hearing protection should be worn by the shooter and others in the immediate vicinity of the shooter. Repeated exposure to firearm noise can cause irreversible hearing damage.
  • Safety glasses are recommended to protect the eyes from gases, metal fragments and other particles.

Equipment Required

Firearms and ammunition

  • The type of firearm, ammunition and ammunition loads should be appropriate to the species being targeted as well as the location where shooting will occur. A summary of recommended firearms, shot sizes and ranges for some bird species can be found in Table 1.
  • Shotguns are recommended for most birds. Twelvegauge shotguns are commonly used but smaller gauges such as the 410 are effective on smaller birds.
  • Non-toxic shot (eg tungsten-bismuth-tin, bismuth, tungsten-iron, steel, bismuth-tin, zinc etc) must be used. Lead shot is potentially toxic to a range of species and is illegal in some areas. Animals may be poisoned by lead in one of two general ways:
    • Species such as waterfowl mistake spent shot for food or grit and ingest it from wetland or terrestrial environments.
    • Other species, especially eagles and other raptors, and scavengers, ingest pellets when they consume prey that have been shot with shotgun ammunition and are carrying shot pellets embedded in their tissues.
  • If intending to use steel shot ensure that it is safe and effective to do so in your gun. Steel pellets should only be discharged in modern guns that are capable of withstanding the extra stresses produced.
  • When using shotguns, ensure that the choke configuration delivers a dense pattern on the target within the specified distances. For larger birds tighter chokes are preferred eg ½ to full.
  • Centrefire rifles are suitable for large birds such as emus.
  • On some occasions birds such as pigeons need to be shot inside shelters, sheds or other buildings. Air rifles are suitable for this task but they must have sufficient power (eg 1,000 feet / second in .17 calibre or 750 feet / second in .22 calibre) to kill humanely and consistently. They must also be fitted with a telescopic sight and because of their high recoil; a sight specifically designed for pneumatic air rifles is required. Magnification of 4x is suitable and ranges kept under 25 metres to ensure adequate energy is applied to the target. Alternatively .22 rim fire shot cartridge can be used in buildings or shelters. This round is the ordinary .22 rimfire loaded with very fine No. 11 shot (generally known as .22 rat shot or .22 bird shot). Because of their poor patterning characteristics and light weight shot, 15 metres should be regarded as maximum range. Normally the pellets will not penetrate galvanised iron.
  • The accuracy and precision of firearms should be tested against inanimate targets prior to the commencement of any shooting operation. Pattern your chosen gun/cartridge/choke combination before shooting to check your accuracy and that the pattern is adequate for the intended target bird.

Other equipment

  • first aid kit
  • lockable firearm box
  • lockable ammunition box
Common Starling

Common starling. Image: Brian Lukins

Procedures

Identification of birds

  • Shooters should have sufficient knowledge and skill to identify the bird species causing the damage. If the identification of the bird is in doubt it must not be shot.

Conduct of shooting

  • Shooting should only be conducted during daylight hours. Shooting in poor light conditions makes it difficult to correctly identify birds and to search for wounded birds. Also, accurate marksmanship may be compromised.
  • Shooting should not be conducted in adverse weather conditions where birds cannot be shot and located/ retrieved in a safe and humane manner.
  • Birds must NOT be shot from a moving vehicle or other moving platform. Ensure you are in a firm, safe and stable position before taking a shot.

Target bird and point of aim

  • Only one bird should be targeted at a time. The shooter should aim to have a single bird in the centre of the shot pattern at the point of impact. Shooting at a flock is not an acceptable practice.
  • The objective is to fire at the closest range practicable in order to reduce the risk of non-lethal wounding. Accuracy is important to achieve a humane death. One shot should ensure instantaneous loss of consciousness and rapid death without resumption of consciousness.
  • A pest bird should only be shot at when:
    • It can be clearly seen and identified
    • It is within the effective range of the firearm and ammunition being used
    • A humane kill is highly probable. If in doubt, do NOT shoot.
  • For most small to medium birds, the point of aim should be the centre of the birds’ chest.
  • For large birds such as emus, a shot to the brain, using a shotgun, is preferred when the bird is in close range (<30 m). If the bird is > 30 metres from the shooter, a chest shot using a large calibre centrefire rifle (eg .243) should be used.
  • When using a rifle, the target bird must be stationary and within a range that permits accurate placement of the shot.
  • When using a shotgun, the target bird may be stationary or mobile, but must be no more than 30 metres from the shooter. The pattern of shot should be centred on the brain (for large birds) or chest (for small to medium birds). It is essential that the distance to the target bird is accurately judged. To achieve adequate penetration of shot, the bird must be in range. It is recommended that shooters practice estimating distances before a shooting operation.
  • See notes above in Firearms and Ammunition on the use of air rifles on small birds.
  • The target bird should be checked to ensure it is dead before moving on to the next bird. When targeting multiple birds in a flock, a number of birds will need to be shot in rapid succession. In this case, the birds in the group should be checked to ensure they are dead before moving on to the next group. Death of shot birds should always be confirmed by observing the following: ― absence of movement ― absence of rhythmic, respiratory movements. ― absence of heart beat – feel the chest between thumb and forefinger ― absence of eye protection reflex (corneal reflex) or ‘blink’.

If death cannot be verified, a second shot to the head should be taken immediately or the bird killed with a blow to the skull using a heavy instrument to destroy the brain.

  • Killed birds must be collected and disposed of in an appropriate manner in accordance with acceptable practices as required by local councils and applicable state or federal regulations.
Rock dove roosting under an awning. Image: Brian Lukins

Rock dove roosting under an awning. Image: Brian Lukins

Table 1: Firearms, shot size specifications and ranges for the humane destruction of birds.

This information has been extracted from the Code of Practice for the Humane Destruction of Birds by Shooting in South Australia published by SA National Parks and Wildlife Service, February 2001.

Bird species Firearm Shot size Optimum range (metres) Effective range (metres)
Small birds up to starling size (eg silvereyes, sparrows) 410 shotgun

12 gauge shotgun

10’s

10’s -12’s

15

30

25

30

Blackbirds, starlings 410 shotgun

12 gauge shotgun

7’s -9’s

7’s -9’s

15

30

25

30

Red wattlebirds, rosellas, lorikeets 12 gauge shotgun 6’s – 8’s 30 30
Birds up to teal size (eg galahs, little corellas, silver gulls, feral pigeons, chestnut teal, grey teal, pink-eared duck, white-eyed duck) 12 gauge shotgun 4’s to 6’s 30 30
Birds up to mountain duck size (eg long-billed corellas, sulphurcrested cockatoos, cormorants, magpies, crows, ravens, black duck, wood duck, mountain duck) 12 gauge shotgun 3’s to 5’s 30 40
Cape barren geese Centrefire rifle with telescopic sights

12 gauge shotgun

Manuf. specs.

1’s, 2’s (36g)

50

30

200

40

Emu Centrefire rifle –heart shot only

12 gauge shotgun – head shot (injured birds only)

Manuf. specs.

1’s, 2’s

50

5

100

10

Further information

Contact the relevant federal, state or territory government agency from the following list of websites:

Also refer to:

References

  1. American Veterinary Medical Association (2007). AVMA Guidelines on Euthanasia (formerly The Report of the AVMA Panel on Euthanasia).
  2. Bishop J, McKay H, Parrott D and Allan J (2003). Review of International Research Literature Regarding the Effectiveness of Auditory Bird Scaring Techniques and Potential Alternatives. Department for Environment Food and Rural Affairs (DEFRA), United Kingdom.
  3. Environment and Natural Resources Committee (1995). Problems in Victoria caused by Long-billed Corellas, Sulphur-Crested Cockatoos and Galahs. Parliament of Victoria, Melbourne.
  4. Department of Environment and Conservation, Western Australia (2009). Fauna Note No. 9 Destruction of Birds to Reduce Damage.
  5. Dolbeer RA, Holler NR and Hawthorne DW (1994). Identification and control of wildlife damage. In: TA Bookhout (Ed.) Research and management techniques for wildlife and habitats (5th ed). The Wildlife Society, Bethesda. Pp 474-506.
  6. Gregory N (2003). Assessing the humaneness of pest control methods. In: Solutions for Achieving Humane Vertebrate Pest Control. Proceedings of the 2003 RSPCA Australia Scientific Seminar, Canberra, 25 February 2003. Royal Society for the Prevention of Cruelty to Animals Australia, Canberra. Pp 65-84.
  7. Mawson P (1991). Ethics, animal welfare and operational guidelines for the humane shooting of pest animals. Agriculture Protection Board of Western Australia Infonote.
  8. Department of Environment, Water and Natural Resources (2001). Code of practice for the humane destruction of birds by shooting in South Australia. Government of South Australia.
  9. Department of Environment, Water and Natural Resources (1998). Humane slaughter of emus. Government of South Australia.
  10. Sainsbury AW, Bennett PM and Kirkwood JK (1995). The welfare of free-living wild animals in Europe: harm caused by human activities. Animal Welfare 4:183- 206.
  11. Sinclair R (undated). Guidelines for best practice bird management. Animal and Plant Control Commission, Government of South Australia.
  12. Smith G (1999). A guide to hunting and shooting in Australia. Regency Publishing, South Australia.
  13. NSW Department of Primary Industries (2012). Pest birds biology and control. In: Biology, Ecology and Management of Vertebrate Pests in NSW. NSW Department of Primary Industries, Orange, NSW.
  14. Tracey J, Bomford M, Hart Q, Saunders G and Sinclair R (2007). Managing bird damage to fruit and other horticultural crops. Bureau of Rural Sciences, Canberra.
  15. UFAW (1976). Humane destruction of unwanted animals. Universities Federation for Animal Welfare, Potters Bar, England.
Galahs. Image: Brian Lukins

Galahs. Image: Brian Lukins

The Centre for Invasive Species Solutions manages these documents on behalf of the Environment and Invasives Committee (EIC). The authors of these documents have taken care to validate the accuracy of the information at the time of writing. This information has been prepared with care but it is provided “as is”, without warranty of any kind, to the extent permitted by law.

 

Connect with Government

It is important to connect with the relevant government authorities to ensure you have the right permits in place being undertaking pest bird management.

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How to reference this page:

Trudy Sharp, 2012. Shooting of pest birds. Standard Operating Procedure. PestSmart website. https://pestsmart.org.au/toolkit-resource/shooting-of-pest-birds accessed 28-10-2020