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Table 1 Variables used in describing habitat in Augustów Forest featuring nesting trees for white-tailed eagles and black storks

From: Nest-site selection by the white-tailed eagle and black stork – implications for conservation practice

Parameter

Place of measurement

Value (rank/unit)

DBH of tree

Nesting trees & random trees at centers of study plots

cm

Tree height

m

Branch height (lowest point of tree crown above ground)

m

Tree species (nesting/random)

 

Tree age (nesting/ random)

year

Crown height

m

Height of nest (above ground)

Nesting trees

m

Distance to tree top (from nest)

m

Placement (of nest on tree)

top (1), inside crown (2), side branch by trunk (3), side branch further from trunk (4)