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Golondrinas Database - Morphology

This data set contains morphological data for adults and chicks. For chicks, an observation is entered each time nestlings are measured in that nest. Therefore multiple observations per attempt are likely.

For a general explanation of default variable codes, click here.

Variable Name

Description, definitions, values and examples

BIRDID
[txt]

Unique identifier for each individual measured

Usually coded as the band number (or a temporary value updated when a chick is banded, provided known continuity). Temporary/Dummy values must follow the construction detailed under the variable ‘CHICKID’ in the CHICKS database, and must agree with that value.

DATE
[date]
Date of measurement (mm/dd/yyyy)
UNIQUE
[logic]

Whether or not the identity of this individual known i.e. if there are repeat measurements for chicks in this nest, can the same individuals be identified?

  • 0= not known
  • 1= known

Note: if continuity is not known, it is arbitrary which dummy ‘birdid’ is used for repeat measurements.

HEADBILL
[double]
Head plus culmen length (mm)
FLATWING
[double]
Straightened and flattened wing length (mm)
MASS
[double]
Mass of chick or adult (gm)
TARSUS
[double]
Tarsus length (mm), from joint to joint
OBSERVER
[txt]
Initials of field research person responsible for this capture and banding

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