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Hybrid Sandpipers Pectoral Sandpiper Calidris Melanotus

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Hybrid Sandpipers Pectoral Sandpiper Calidris Melanotus The Australian Bird Guide Species accounts CURLEW SANDPIPER Curlew Sandpiper Calidris ferruginea undertail-coverts clean white, occasionally with sparse incon- Juv worn, Oct–Nov spicuous dark streaks (Sharp-tailed has distinct streaking on Wing 126–136 mm Bill 34–44 mm Wt 55–93 g undertail-coverts, often a helpful ID cue from behind). long-winged: tips of white rump and Smallish, slim sandpiper with long blackish legs. Long, fine- ♂ ~10% taller than ♀. All plumages quite similar to one primaries usually project wing-bar tipped, down-curved black bill (~15% longer in ♀). In flight, beyond tail-tip our only regularly occurring small sandpiper with white another, unlike Sharp-tailed Sandpiper in which Ad br and rump-patch. Ad br mainly chestnut. Confusion only possible Juv plumages distinctive. In flight rarely separable from with larger, stockier, short-billed Ad br Red Knot. Ad non-br Sharp-tailed except on call, but has brown (not white) shafts paler grey above than most Aus shorebirds, with clear white to inner primaries. Ad br bright rufous edges to upperparts feathers, strongly marked breast; little yellow at base of bill. Juv fresh, supercilium; white below; grey-brown streaking on sides of Sep–Oct breast varies but paler and less extensive than Sharp-tailed. Ad non-br bare parts brighter than Ad br, but plumage duller mainly plain pale grey rufous Juv peach-buff wash across breast when fresh, and white- with lighter breast streaking; rufous edging to feathers of upperparts Ad br worn scalloped upperparts with anchor-shaped markings within upperparts much reduced or absent. Juv differs from Ad br Jun feathers. When worn, white fringes and buff wash are lost, in slightly paler breast and uniform wear of plumage. Imm and upperparts look darker and more ‘oily’ than Ad non-br. difficult to distinguish from Ad unless retained Juv flight fine decurved black bill, clear white supercilium Imm non-br like Ad non-br but retains Juv primaries wing- feathers detected; moults to breeding plumage and migrates coverts and sometimes some Juv tertials. Remain in Aus for n at end of 1st yr. Voice: In flight (especially when flushed) initial austral winter (first migrate n when 2 yr old); develop gives variations of a low trill chrrip, deeper and hoarser than Sharp-tailed Sandpiper; call harsher when alarmed, recalling Imm non-br Ad 1st Imm br like Ad non-br, but often with coarser dark Dec–Mar non-br ♂ centres to some feathers of upperparts; some develop Budgerigar. Notes: Nests in near-Arctic Siberia and N Oct–Feb varying traces of reddish colouration. Voice: Pleasing short America; most migrate to S America. Uncommon but regular trill chirrup or chreep given in flight and as contact call. visitor to Aus, seen singly or rarely in small loose groups in Notes: Migrant from Arctic Siberian breeding grounds. shallows or grassy edges of freshwater wetlands; also use Ad br ♀ fresh, brackish wetlands with short saltmarsh fringes when no Feb–Apr Usually found in flocks, often with other species. Largest white fringes to numbers occur in tidal flat systems, but also use freshwater fresh water available. Seldom forages on tidal flats: a good underparts feathers and brackish wetlands; open muddy shores where birds way to find Pectorals can be to search near-coastal freshwa- when fresh forage in shallow water (often up to belly-deep); occasion- ter wetlands at low tide in Apr when distracting Sharp- ally swim with buoyant carriage, tail and wing-tips raised taileds have mostly moved to tidal flats, or migrated n. PECTORAL SANDPIPER Cox’s Sandpiper Ad non-br well clear of water. Formerly one of our most common shore- (Curlew-Pectoral Sandpiper hybrid) birds, but has declined sharply since 1980s. Sharp-tailed Sandpiper Calidris acuminata Wing 122–143 mm Bill 22–27 mm Wt 57–100 g Hybrid Sandpipers Common summer visitor. Note small–medium size, shortish bill, greenish legs, rusty cap and coarsely streaked dark upper- In Aus, rare hybrids between Pectoral and Curlew Sand- ♂ ♀ parts (better concealed in grass than on open mud). ~7% pipers were initially considered aberrant Dunlin or a new ♂ taller than . Similar to Pectoral Sandpiper. Long-toed Stint species ‘Cox’s Sandpiper’ before hybrid ID was confirmed ♀ Ad non-br is much smaller, finer-billed and lacks dark streak- through plumage and genetic studies. They are most likely to ing on flanks and undertail-coverts. Ruff much larger, with Juv be found with Curlew Sandpiper, differing in non-br plumage Sep–Nov plainer face, less streaked underparts. In flight has narrow by more coarsely patterned upperparts, more heavily white wing-bar, dark centre to rump. Ad br brightly coloured streaked breast sharply demarcated from white belly, and above; coarse black chevrons on breast and flanks. Ad non-br Ad br heavily streaked breast with greenish legs (much variation in darkness). Appearance thus Mar–Apr sharp straight cut-off approaches Pectoral but ‘Cox’s’ has greyer upperparts; varies (some with narrow rufous edging to some scapulars unmarked white undertail-coverts longer, finer and more down-curved black bill; slightly and tertials), but usually looks greyer above than Pectoral; longer wings and legs also contribute to structural appear- breast streaking most extensive at sides, faint in midline of ance more like Curlew Sandpiper (though ‘Cox’s’ is often body. Juv handsome; brightly coloured upperparts like Ad br shorter billed). Even more rare hybrid sandpipers of different and apricot band across breast. After post-Juv moult begins, parentage have now been recorded (including probable broad rufous fringes to retained Juv tertials often the best SHARP-TAILED SANDPIPER Ad non-br Oct–Feb dark hybrids of Sharp-tailed and Curlew Sandpiper). distinction from Ad. Imm difficult to distinguish from Ad centred unless retained Juv flight feathers detected; moults to br rump rusty cap, plumage and migrates n with Ads about Mar–Apr; hence and tail prominent white Pectoral Sandpiper Calidris melanotus rarely recorded in Aus winter. Voice: Soft flight-note pleep or Imm non-br eye-ring Wing 125–149 mm Bill 25–31 mm Wt non-br 52–70 g plee-ip and short trill trrt often repeated or given in jumbled Uncommon, often overlooked among similar non-br Sharp- succession. Notes: Migrant; nests in n Siberian tundra. tailed Sandpiper. Pectoral has longer bill, usually with exten- Usually in flocks, often with other shorebird species. sively yellow base; yellower legs; generally browner and darker Probably the most numerous migratory shorebird in fresh to Pectoral Sandpiper flanked by non-br Sharp-tailed Sandpipers cap and upperparts; smaller white orbital ring. Most reliably saline inland wetlands of Aus; also forages in nearby damp distinguished by coarsely streaked breast; sharp demarcation grasslands, and coastal populations routinely use tidal flats, from clean white belly looks ‘spiky’ and cuts straight across preferring relatively sheltered flats within reach of wetlands breast save for downward point in mid-line of body. Vent and where they can also forage at high tide. Curlew Sandpiper Pectoral Sandpiper Sharp-tailed Sandpiper Juv Ad br Sep–Nov distinct apricot wash on breast breast streaking Ad non-br strong at sides, faint undertail- in centre coverts streaked 0 100 160 161 150812 Aust Bird Guide Final.indd 160 19/12/2016 14:02:42.553 150812 Aust Bird Guide Final.indd 161 19/12/2016 14:02:46.270 Red-backed Kingfisher n Aus has slightly darker underparts. Largest ssp diemenen- RED-BACKED KINGFISHER sis of Tas is VU. diagnostic rufous rump; white-streaked crown Todiramphus pyrrhopygius Wing 95–109 mm Bill 43–48 mm Wt 43–70 g Little Kingfisher Ceyx pusillus Medium-small inland kingfisher, mostly dark green above long white supercilium and white below. Confusion most likely with Sacred King- Wing 51–58 mm Bill 28–35 mm Wt 10–16 g broadest when crest raised fisher but Red-backed has unique combination of long broad Tiny, stumpy-tailed waterside kingfisher with long black bill, whitish supercilium, white streaking on crown, and rufous deep glossy blue upperparts and white underparts (an obvious back, rump and uppertail-coverts, variably concealed when distinction from larger Azure Kingfisher). Flight fast and perched, but conspicuous in flight. White edges to bases of low over water; no white wing-spots, unlike much larger scapulars sometimes exposed as diagnostic streaking. Ad ♂ Forest Kingfisher. White spots on lores and hindneck mantle and scapulars dark bluish green; bill black with contrast strongly, especially when seen in deep shade. Ssp whitish basal half to lower mandible. Ad ♀ greens and blues halli has deep violet-blue upperparts; ssp ramsayi is less of cap and upperparts duller than ♂, washed grey or brown; dark and violet above, tinged green-blue on face and wings, white streaking of crown usually narrower. Juv similar to usually has more extensive blue on sides of breast. New Ad ♀ Ad, but bill initially has small white tip and pink tinge to Guinea ssp pusilla has brighter violet upperparts; has been Ad ♂ basal half of lower mandible; sides of breast and neck scal- recorded on n Torres Strait Is, not known if it contributes to stronger blues confusing variation in ne Cape York where ramsayi and halli and greens loped by blackish fringes to feathers. Secondary-coverts Juv than in ♀ narrowly fringed buff. Buff and blackish fringes are reduced intergrade. Ad clean white breast, unbarred crown. Juv with wear but remnants usually discernible until 1 yr old. slightly duller, more green-tinged blue upperparts than Ad Voice: Main (probably territorial) call a down-slurred with fine black barring in crown; fine dark scaling through mournful whistle chyew, steadily repeated at ~3 sec inter- white breast. Voice: Penetrating thin whistle tsee or tweeip, AZURE KINGFISHER vals.
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