Visit Status Codes
Select up to 3 codes to describe the status of the nest on each visit
Nest Building Stage
N0 = Nest site empty N1 = Nest 1/4 built N2 = Nest 1/2 built N3 = Nest 3/4 built N4 = Nest complete, unlined NC = Nest completed NL = Nest complete, lined
Eggs
CO = Cold CV = Covered DE = Developing embryo present FR = Fresh HA = Hatching PI = Pipping/calling from egg UN = Uncovered WA = Warm
Young
AY = Audible young in nest BL = Blind DO = Downy (young still in nest) EY = Eyes open FL = Primary feathers large; more than 2/3 emerged from sheath FM = Primary feathers medium; 1/3 - 2/3 emerged from sheath FS = Primary feathers short; less than 1/3 emerged from sheath IP = Primary feathers in pin LB = Left naturally before fledging NA = Naked ON = Young outside of underground nest RF = Ready to fledge TO = Egg tooth present YB = Young banded YP = Young present but not counted
Adult Activity
Combine codes (e.g. AN = adult on nest, FF = female feeding young
A = Adult
M = Male
F = Female
P = Pair
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B = Building nest or carrying nest material
D = Dead
F = Feeding young at nest
N = On/at/flushed from nest
T = Trapped at/near nest
V = In vicinity of nest
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Nest Outcome Codes
Select one or two outcome codes to indicate best evidence for success or
failure of the nest. For partially succesful nests, (i.e. where only part of brood
fledges) write both success and failure codes.
Outcome: Success
AC = Adult carrying food near nest EX = Young 'exploded' from nest when inspected HS = Hatched shell fragments in empty nest (e.g. plovers, gamebirds, ducks, etc.) MR = Banded young retrapped/resighted after fledging NE = Nest empty, undisturbed with well-trodden lining containing feather scale and/or droppings NN = Fledged young seen near nest SL = Young seen leaving (fledging) naturally SY = Some young fledged, other live young still in nest VA = Adult visibly agitated or giving alarm calls near nest YC = Young capable of leaving nest on previous visit
Outcome: Failure
Combine codes for right and left columns (e.g. EP = predation at egg stage, XF = flooded at unknown stage)
E = At egg stage
J = At young stage
X = At egg or young stage
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A = Eggs not hatched (infertile/addled)
B = Injured/broken
C = Killed/thrown out by Cowbird
D = Deserted/starved/dead
E = Empty damaged nest
F = Flooded
I = Human causes - intentional
J = Empty undamaged nest
L = Livestock
M = Human causes - unintentional
O = Other/unknown
P = Predation
T = Thrown/fallen out
U = Usurped from nest by other bird species
W = Wind damage
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Outcome: Unknown
OU = Unknown
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