TABLE 1.

Extent of postbreeding molt in wing and tail feather tracts of the Pallas´s Grasshopper Warblers at six sites along the migration route (PP = primaries, SS = secondaries, TT = tertials, TF = tail feathers).

Study site	Central Siberia	Mongolia	Russian Far East	Korea	Hong Kong	Thailand
Sampling period	July–August	August–September	August–September	August	September	August–December
Sampling years	1990–2015	2018	2011–2017	2014–2016	2008–2018	1995–2014
PP
n individuals	26	14	16	9	137	28
% Of ind having all/some molted	0%/100%	0%/100%	19%/100%	0%/100%		0%/75%
Mean number (range) of molted	3.3 (1–7)	6.0 (2–8)	7.3 (2–9)	7.1 (5–8)	8.0 (0–9)	5.0 (0–7)
SS
n individuals	19		16	7		22
% Of ind having all/some molted	0%/0%		0%/62%	0%/57%		0%/14%
Mean number (range) of molted	0.0 (0)		0.8 (0–3)	0.7 (0–2)
TT
n individuals	19		16	7		24
% Of ind having all/some molted	32%/47%		56%/81%	100%/100%		63%/100%
Mean number (range) of molted	2.4 (2–3)		2.6 (0–3)	3.0 (3)		2.5 (1–3)
TF
n individuals	19		15	7
% Of ind having all/some molted	100%/100%		87%/100%	85%/85%
Mean number (range) of molted	6.0 (6)		4.1 (0–6)	5.0 (0–6)
Fat
n individuals	6	14	13	9	183	24
Mean fat score	2.2	3.6	1.8	3.9	3.0	2.1
Muscle score
n individuals		14	13			21
Mean muscle score		2.4	2.0			2.0
Mass
n individuals	21	14	14	9	183	24
Mean body mass in g	15.4	15.3	14.7	16.0	13.7	16.0
Range in g	14.0–16.2	13.5–17.6	13.2–16.5	13.3–19.1		13.3–19.4

Given is the mean number of molted feathers (range) and below the percentage of individuals having molted all/some of those feathers, if recorded.