Introduction

The data

This overview is generated using the data from the VWSG, updated on 19 January, 2022. For species where sufficient data is available, minimal age overviews and variations in juvenile percentages over the years are being calculated and provided. The data does not include ABBBS recoveries and leg-flag sightings.

Some noteworthy data characteristics:

  • it includes all birds originally banded as adults, immatures or juveniles by the VWSG in South Eastern Australia and notably Victoria (for approximate area covered by these activities see map below).

  • it contains data where a year (season) runs from August 1- July 31 the next year.

  • it presents conservative age overviews (e.g. a bird aged 2+ upon banding was assumed to be 2 years of age).

  • the data has been rather conservatively filtered for obvious errors in observations.



Species overviews

The age overview and juvenile percentages are shown for each species in alphabetical order. For each species a separate html file is generated.




Click on the links below to select your species, use the browser’s back button to get back to this index file

Banded Stilt

Bar-tailed Godwit

Caspian Tern

Common Greenshank

Common Tern

Crested Tern

Curlew Sandpiper

Double-banded Plover

Eastern Curlew

Great Knot

Greater Sand Plover

Grey Plover

Grey-tailed Tattler

Gull-billed Tern

Hooded Plover

Latham’s Snipe

Lesser Sand Plover

Little Tern

Masked Lapwing

Pacific Golden Plover

Pied Oystercatcher

Red Knot

Red-capped Plover

Red-kneed Dotterel

Red-necked Avocet

Red-necked Stint

Ruddy Turnstone

Sanderling

Sharp-tailed Sandpiper

Silver Gull

Sooty Oystercatcher

Terek Sandpiper

Whimbrel

Whiskered Tern

References to photographs

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Tom Tarrant(Photographer). (February 2015). Banded Stilt (Cladorhynchus leucocephalus) Banded Stilts, Avalon Beach, Victoria. 2015. [digital image]. Retrieved from: https://www.flickr.com/photos/aviceda/16759971141
Dunes, E. (Photographer). (2018, October 27). Bar-tailed Godwit Port Fairy, Victoria. [Digital image]. Retrieved from: https://www.flickr.com/photos/blachswan/46769492032
MDF (Photographer). (2017, April). Caspian Tern (Hydroprogne caspia) [digital image]. Retrived from: https://de.wikipedia.org/wiki/Datei:Sterna-caspia-010.jpg
Harrison, J. J. (photographer). (2011a, January 28). Tringa nebularia ? Laem Phak Bia [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Tringa_nebularia_-_Laem_Phak_Bia.jpg
Harrison, J. J. (photographer). (2018b, November 24). Common Tern (Sterna hirundo), non-breeding plumage, boat harbour, New South Wales, Australia [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Sterna_hirundo_-_Boat_Harbour.jpg
Harrison, J. J. (photographer). (2008, September 17). Crested Tern Tasmania [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Crested_Tern_Tasmania_(edit).jpg
Harrison, J. J. (photographer). (2013a, January 18). Calidris ferruginea, winter adult, Pak Thale [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Calidris_ferruginea,_winter_adult,_Pak_Thale.jpg
Harrison, J. J. (photographer). (2011b, July 30). Double-banded Plover (Cgaradrius bicinctus) breeding plumage, Talph?s Bay, Tasmania [Digital image]. Retrieved from: https://en.wikipedia.org/wiki/File:Charadrius_bicinctus_breeding_-_Ralphs_Bay.jpg
Winterflood, G. (photographer). (2018, December 17). Eastern Curlew (Numenius madagascariensis) [Digital image]. Retrieved from: https://www.flickr.com/photos/126953422@N04/45462309735
Yap, F. (photographer). (2011). Great Knot at Seletar Dam [Digital image]. Retrieved from: https://singaporebirds.com/species/great-knot/
Kiu, C., Cheng, R. (photographer). (2009, September 27). Greater Sand Plover [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Greater_Sand_Plover.jpg
Harrison, J. J. (photographer). (2011c, January 11). Grey-tailed Tattler (Tringa brevipes), Ralph?s Bay, Tasmania. [Digital image]. Retrieved from: https://en.wikipedia.org/wiki/Grey-tailed_tattler#/media/File:Tringa_brevipes.jpg
Smuldge. (photographer). (2015, November 23). Grey Plover ( Pluvialis squatarola) in winter plumage [Digital image]. Retrieved from: https://www.flickr.com/photos/smudge9000/23223898516/
Knight, R. (photographer). (2009, October 23). Gull-billed Tern Gelochelidon nilotica, Birdsville Track, south Austrlia [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Gelochelidon_nilotica_Birdsville,_South_Australia_1.jpg
Harrison, J. J. (photographer). (2011d, December 28). Hooded Plover (Thinornis rubricollis rubricollis) [Digital image]. Retrieved from: https://en.wikipedia.org/wiki/File:Thinornis_rubricollis_-_Orford.jpg
Dunes, E. (photographer). (2016, March 5). Letham?s Snipe [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Latham%27s_Snipe_(25571078265).jpg
Harrison, J. J. (photographer). (2012b, November 22). Lesser Sand Plover [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Charadrius_mongolus_-_Laem_Pak_Bia.jpg
Harrison, J. J. (photographer). (2011e, December 28). Little Tern (Sternula albifrons), Tasmania [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Sternula_albifrons_2_-_Little_Swanport.jpg
Harrison, J. J. (photographer). (2009, September 29). Masked Lapwing (Vanellus miles novahollandiae). [Digital image]. Retrieved from: https://en.wikipedia.org/wiki/Masked_lapwing#/media/File:Vanellus_miles_novaehollandiae.jpg
Harrison, J. J. (photographer). (2013b, January 18). Pacific Golden Plover (pulvalis fulva) [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Pluvialis_fulva_2_-_Laem_Pak_Bia.jpg
Fergus, G. (photographer). (2006, April). Pied Oystercatchr, Haematopus longirostris [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Pied_Oystercatcher.jpg
Kavangh, P. (photographer). (2013, February 27). Red-capped Plover (Charadrius ruficapillus) [Digital image]. Retrieved from: https://www.flickr.com/photos/patrick_k59/8511932135\
Harrison, J. J. (photographer). (2014, January 4). Red-kneed Dotterel (Erythrogonys cinctus) [Digital image]. Retrieved from: https://en.wikipedia.org/wiki/File:Erythrogonys_cinctus_-_Chiltern.jpg
Harrison, J. J. (photographer). (2019, January 5). Red-necked Avocet (Recurvirostra novahollandiae) [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Recurvirostra_novaehollandiae_3_-_Sydney_Olympic_Park.jpg
Kavanagh, P. (photographer). (2019, March 18). Red-necked Stint (Calidris ruficollis). [Digital image]. Retrieved from: https://www.flickr.com/photos/patrick_k59/47411117161/in/photostream/
Harrison, J. J. (photographer). (2018c, November 14). Red Knot (Calidris canutus). [Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Calidris_canutus_-_Boat_Harbour.jpg
Hillewaert, H. (Photographer). (2011, May 12) Ruddy Turnstone (Arenaria interpres) I[Digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Arenaria_interpres_(habitus).jpg
Harrison, J. J. (Photographer). (2011, January 28). Sanderling (Caladris alba). [digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Calidris_alba_-_Laem_Phak_Bia.jpg
Harrison, J. J. (Photographer). (2018, November 10). Sharp-tailed Sandpiper (Calidris acuminata). [digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Calidris_acuminata_-_Sydney_Olympic_Park.jpg
Quartl. (Photographer). (2009, March 4). Silver Gull Beach. [digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Silver_Gull_Beach.JPG
Harrison, J. J. (Photographer). (2018, December 8). Sooty Oystercatcher (Haematopus fuliginosus). [digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Haematopus_fuliginosus_-_Doughboy_Head.jpg
Imran, S. (Photographer). 2018, July 30). Terek Sandpiper captured at Borit, Pakistan. [digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Terek_Sandpiper_(Xenus_cinereus)_(46574055042).jpg
Andrew. (Photographer). 2016, November 12). Whimbrel in Bodega Bay. [digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Whimbrel-12NOV2016.jpg
Thompson, J. (Photographer). 2012, December 12). Whiskered Tern (Chlidonias hybrid). [digital image]. Retrieved from: https://commons.wikimedia.org/wiki/File:Whiskered_Tern.jpg