This page has two states. While field sessions run, it shows a live count of what has been recorded. At season end, it switches to the analytical figures and the season summary that feed the published paper.
Live dashboard
Aggregated from session records held on this device. When the sync endpoint is configured, these numbers will reflect the project-wide dataset.
Sessions completed
0
No sessions queued yet.
Date range
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First and last session date.
Total Terek arrivals (est.)
0
Bracket midpoint sum across sessions.
Other shorebird arrivals (est.)
0
All species other than Terek.
Disturbance events
0
Total across the season so far.
Behaviour scans
0
Timed posture scans recorded.
Flag observations
0
Marked-bird sightings logged. Submit also to
BirdMark.
Sessions held
What we are watching for
The pilot is structured around three paired questions, in increasing order of specificity.
A. Does KBR — open central area or 40 m mangrove end-zones — function as an overnight roost for Terek Sandpiper in normal weather, or is constructed-roost use restricted to foul-weather conditions?
B. If birds do roost overnight at KBR, what is the arrival pattern across the dusk window, and how does it compare with the Sanders and Handmaker (2021) Whimbrel pattern at Deveaux Bank?
C. What proportion of the Pumicestone Passage Terek population is using the constructed roost at any given time, and what proportion is using the surrounding mangrove fringe?
Season summary
Analytical figures from the 2026–27 austral summer season, with the season's data run through the Sanders/Handmaker R toolkit (or Python equivalent).
Cumulative arrival curve
Net arrivals across the dusk window, with confidence bands across sessions. Session-mean line in dark; individual sessions plotted in muted slate. Civil twilight marked with a vertical reference line.
Figure 1 — Terek Sandpiper cumulative arrival curve at KBR, 2026–27
Plotted at season end from the queued data.
Proportion of total flock by minute past sunset
The share of total dusk arrivals reached at each minute past sunset, in line with Sanders and Handmaker (2021) Figure 2 for Whimbrel at Deveaux Bank. The published Whimbrel curve is overlaid for reference.
Figure 2 — Proportion-of-total-flock curve, Terek vs Whimbrel reference
Landing-zone breakdown
Open ground vs mangrove edge vs mangrove canopy vs not-settled, by season-block (early-southbound, mid-season, late-northbound). Tests question A — whether KBR overnight use is restricted to the mangrove end-zones, the open area, or whether birds pass through.
Figure 3 — Landing-zone distribution by season-block
Posture settling-curve
Percentage of the settled Terek flock in head-up vs bill-tucked posture across the three timed scans. The crossover point indicates the flock-level transition from arrival to deep rest.
Figure 4 — Settling-curve from the three timed posture scans
Disturbance rate and energy-expenditure estimate
Alarm-flight rate per session and per season, with the Lilleyman et al. (2016) coefficient applied to give a daily-energy-expenditure estimate. The Lilleyman finding: 10 alarm flights per day raised daily energy expenditure by 4.5–4.7% in knot-sized species.
Figure 5 — Alarm-flight rate and energy-cost panel
Overnight roost-use proportion
Estimated overnight-Terek count at KBR as a proportion of QWSG daytime counts at the same site, by season-block. Speaks to question C — what share of the Pumicestone Passage Terek population the constructed roost actually holds.
Figure 6 — KBR overnight count as proportion of QWSG daytime count
Pressure trend at arrival: anticipatory or reactive
Total dusk-window arrivals plotted against 6-hour and 24-hour pressure trend. Tests whether KBR arrival numbers correlate with falling barometric pressure ahead of foul weather (anticipatory) or with conditions already deteriorated (reactive). Pre-2026 KBR records of large Terek arrivals during bad weather (November 2021, December 2022) sit on this plot as reference points.
Figure 7 — Arrival count vs pressure trend (6 h and 24 h)
Flag resightings
Individual flag-marked Terek (and other shorebird) detections across the season, by origin where the flag combination identifies it. All resightings forwarded to BirdMark and QWSG. Branson et al. 2010 (Wader Study Group Bulletin 117: 27–34) is the foundational reference; eastern Australian Tereks have a different migration strategy from north-west Australian birds, so site-level data from Pumicestone Passage adds to a thin Terek-specific evidence base.
Figure 8 — Flag-marked individuals detected at KBR by origin
What the season showed
A short narrative — written at season end — covering the three questions A, B, C, the headline numbers, the surprises, and the management implications for the BIEPA Shorebird Working Group, the City of Moreton Bay, and the Queensland Wader Study Group. This becomes the seed text for the Wader Study submission.
Season narrative — written at end of field season