 Commonwealth of Australia 2010


Appendix 2 - Effect of Tailing Storage Facilities on Bird Species



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Appendix 2 -
Effect of Tailing Storage Facilities on Bird Species


Table A2-1 Distribution, migration and seasonal movement of some bird species recorded by Donato (1999) experiencing mortality at tailings storage facilities

Species

Habitat Used – Activity

Utilisation Period*

Observed Effects & Comments

Black Swan Cygnus atratus

Supernatant – Roosting

Vagrant. Responding to drought conditions in usual range

Some mortalities observed at CNT. Observed to weaken then get bogged in slurry.

Pacific Black Duck Anas superciliosa (S)

Supernatant-roosting & feeding

CNT: all year

TE: May-Oct



Some mortalities.

Grey Teal Anas gracilis (S)

Supernatant-roosting & feeding

CNT: all year

TE: May-Oct



Suffers significant mortalities. Disperses after rain, returning to TSFs in dry conditions. Large flocks travel by night.

Pink-eared Duck (S) Malacorhynchus membranaceus

Supernatant-roosting

CNT: all year

TE: May-Oct



Few mortalities, although likely to be attracted to TSFs, depending on environmental conditions. Known to form large flocks if conditions suitable at CNT. Travels by night.

Hardhead Aythya australis (S)

Supernatant-roosting

CNT: all year

TE: May-Oct



Significant mortalities recorded. Low silhouette in water, frequently diving, so exposed to toxicity. Can form large flocks; attracted to deep supernatant. Can travel at night.

Australian/Hoary-headed Grebe Tachybaptus novaehollandiae /Poliocephalus poliocephalus

Supernatant-roosting & feeding

CNT: all year

TE: all year



Overlooked and mortalities grossly underestimated. Low silhouette and frequently diving. Carcasses removed by raptors and buried by slurry.

Australian Pelican Pelecanus conspicillatus

Supernatant-roosting

CNT: Vagrant?

TE: May-Oct



Some mortalities. Requires large expanses of water.

White-faced Heron Ardea novaehollandiae

Supernatant & slurry-Feeding

CNT: all year

TE: May-Oct



Regular mortalities observed. Attracted to TSFs. Solitary or in pairs.

White-necked Heron Ardea pacifica

Supernatant & slurry-Feeding

CNT: all year

TE: May-Oct



Fewer mortalities than White-faced Heron, perhaps due to lower visitation rate.

Great Egret Ardea alba

Supernatant & slurry-Feeding

CNT: all year

TE: May-Oct



The most common egret visiting TSFs during the surveys. Fewer mortalities than abundances would indicate, possibly due to feeding habitat

Nankeen night Heron Nycticorax caledonicus

Supernatant & slurry-Feeding

CNT: all year

TE: May-Oct



Very few mortalities. Nocturnal and common in vegetated areas around TSFs.

Brahminy Kite Haliastur indus

Carrion-feeding,

Ponding-drinking



TE: Dec-Apr

Drinks from ponding at sprinkler heads on heap leach pads. Generally rare visitor to mining leases in this study.

Brown Goshawk/Collared Sparrowhawk Accipiter fasciatus/A. cirrhoceophalus

Carrion-feeding?

CNT: all year

TE: all year



Not known to take carrion, mortalities have been recorded. Possibly mis-identified (for Brown Falcon?). Not expected to be attracted to TSFs.

Wedge-tailed Eagle Aquila audax

Carrion-feeding

CNT: all year

TE: all year



Possibly susceptible when feeding on large carrion on site.

Australian Bustard Arteotis australis

Supernatant-drinking

CNT: all year

TE: May-Oct



Dead on TSF wall (possibly drinking)

Marsh Sandpiper Tringa stagnatalis (S,J,C)

Supernatant & slurry-feeding

CNT: Sept-May

TE: Sept-Nov, Mar-May



Feeds in wet slurry. Possibly overlooked during passage migration. More thorough observations required.

Common Greenshank Tringa nebularia (S,J,C)

Supernatant & slurry-feeding

CNT: Sept-May

TE: Sept-Nov, Mar-May



Feeds in wet slurry. Possibly overlooked during passage migration. More thorough observations required.

Black Kite Milvus nigrans (S)

Carrion-Feeding.
Bare ground-roosting.
Supernatant-drinking. Thermals – soaring

CNT: all year

TE: May-Oct



Continually patrolling TSFs for bird carcasses (& other wildlife), and large insects embedded in slurry. Small prey items eaten on the wing or removed from slurry. Suffers significant mortalities when eating large prey items on site when exposed to toxic tailings, fumes and possibly flesh. Drinks from seepage on the outside of TSFs where mortalities have been recorded. On heap leach pads, drinks (dry season) from small ponds around irrigation heads.

Whistling Kite Haliastur sphenurus (S)

As for Black Kite (refer above)

CNT: all year

TE: May – Oct (all year?)



As for Black Kite (refer above)

Red-necked Stint Calidris ruficollis (S,J,C)

Supernatant & slurry – feeding

CNT: Sept-May

TE: Sept-Nov, Mar-May



Feeds in wet slurry. Possibly overlooked during passage migration because of small size. More thorough observations required.

Sharp-tailed sandpiper Calidris acuminata (S,J,C)

Supernatant & slurry – feeding

CNT: Sept-May

TE: Sept-Nov, Mar-May



Feeds in wet slurry. Possibly overlooked during passage migration. Because of small size and coloration. More thorough observations required.

Black-winged Stilt Himantopus himantopus (S)

Supernatant & slurry – feeding

CNT: all year

TE: May-Oct



Feeds in wet slurry. Attracted to TSFs, where almost continual mortalities recorded. Mostly found in shallow supernatant.

Red-necked Avocet Recurvirostra novaehollandiae

Supernatant & slurry – feeding

CNT: all year

TE: May-Oct



Feeds in wet slurry. Less frequently observed on TSFs compared with Black-winged Stilt, consequently suffers fewer mortalities.

Masked Lapwing Vanellus miles

Bare ground – feeding

CNT: all year

TE: all year



Common around TSFs but its feeding preference on short grassland generally does not expose it to tailings

Oriental Pratincole Glareola maldivarum (S,J,C)

Bare ground-feeding, Supernatant-drinking, Thermals – feeding

CNT: Nov-Feb

TE: Oct-Nov



Passage migrant (one way in Top End). Drinks from TSFs’ supernatant and ponding around sprinkler heads on heap leach pads

Australian Pratincole Stiltia isabella (S)

Bare ground-feeding, Supernatant-drinking, Thermals – feeding

CNT: all year

TE: May-Oct



Drinks from TSFs’ supernatant and ponding around sprinkler heads on heap leach pads

Silver Gull Larus novaehollandiae

Supernatant – feeding

CNT: all year

Usually associated with garbage dumps on mining sites. In one case a mortality identified as Silver Gull could have been a Tern species.

Gull-billed Tern Sterna nilotica (S)

Supernatant & slurry-feeding,


CNT: all year?

TE: all year?



Suffers significant mortalities. Disperses away from TSFs/dams after rain.

Caspian Tern Sterna caspia (S)

Supernatant & slurry – feeding

CNT: all year?

TE: all year?



Not common on tailings, although some mortalities recorded. More coastal in Top End.

Whiskered Tern Chlidonias hybridus (S)

Supernatant & slurry – feeding

CNT: Sept-Apr

TE: Apr – Dec



Suffers significant mortalities. Appears to prefer TSFs to natural waterholes, because of stranded or dead insects, etc. TSFs raised above the surrounding terrain apparently attracts this species, probably anti-predator behaviour.

Cockatiel Nymphicus hollandicus (S)

Supernatant – drinking

CNT: all year

TE: May – Oct



In CNT, will drink from open water bodies, such as TSFs. Occurs in large flocks after good seasons, thus susceptible to significant mortalities. In the Top End, usually travels in small flocks preferring waterholes. No mortalities recorded during this study although unquantified anecdotal information suggests that considerable mortalities may occur under some environmental conditions.

Budgerigar Melopsittacus undulatus (S)

Supernatant-drinking and feeding

CNT: all year

TE: May-Oct



In CNT, will drink from open water bodies, such as TSFs. Occurs in large flocks after good seasons, thus susceptible to significant mortalities. In the Top End, usually travels in small flocks preferring waterholes. No mortalities recorded during this study although unquantified anecdotal information suggests that considerable mortalities may occur under some environmental conditions.

Source: Donato (1999) & cited in Donato (2002). CNT = Central Northern Territory (dry arid climate). TE = Top End of Northern Territory in wet/dry tropical climate. J = Japan-Australia Migratory Bird Agreement. C = China-Australia Migratory Bird Agreement. S = susceptible species as nominated by Donato (2002).




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