Abundance
a - Abundant: likely to be seen in large numbers in proper season and habitat
c - Common: frequently seen in small numbers in proper season and habitat
u - Uncommon: may be seen regularly in small numbers in proper season and habitat
o - Occasional: seen irregularly in small numbers, even in proper habitat
r - Rare: present irregularly in a portion of its habitat, seldom seen
Seasonal Occurrence
SR - Summer resident
PR - Permanent resident
WV - Winter visitor
M - Migrant
Habitat
This listing is for habitat where bird is most commonly found. If no habitat is listed, the bird is of widespread occurrence.
W - Water areas: lakes, ponds, streams, marshes
F - Forest: riparian and upland woods
B - Brush: forest edge, thickets, fencerows
P - Prairie: grasslands, pastures, cultivated fields
R - Riparian: deciduous vegetation along streams