WBBA Great Blue Heron Data

Great Blue Heron Map and Data

Max Breeding Status # Quads # Priority Blocks # Total Blocks

Confirmed 148 71 164

Probable 99 83 120

Possible 246 229 325

Species Total 493 383 609

Total in Atlas 1132 1041 3854

Species Percentage 43.55 36.79 15.80

Species Total is the sum of all quads/priority blocks/total blocks the species was recorded in with at least a Possible breeding status. Total in Atlas is the number of quads/priority blocks/total blocks in the atlas with data (regardless of species). Species Percentage is the Species Total quads/priority blocks/total blocks divided by the Total in Atlas quads/priority blocks/total blocks.

Breeding Behavior # Records Min Date Max Date Mid Date(s)

Fledged Young 19 05/29 08/24 07/15

Feeding Young 14 05/05 07/15 06/26, 07/01

Nest With Young 40 05/20 07/18 06/20, 06/21

Nest With Eggs 2 04/20 06/26

Occupied Nest 83 03/29 07/18 05/22

Nest Building 15 03/27 06/25 05/03

Territorial/Courtship 4 05/12 06/09 05/20, 06/01

Territorial/Courtship category includes five Probable breeding codes: T (Territorial), C (Courtship), N (Hole Nesters Visiting Nest Site), A (Agitated Behavior or Anxiety Calls), and B (Nest Building by wrens or woodpeckers). Nest Building category includes CN (Carrying Nesting Material) and NB (Nest Building). Nest with Young category includes NY (Nest with Young) and FS (Carrying Fecal Sac). Breeding codes of PE (Physiological Evidence), DD (Distraction Display), and UN (Used Nest) are not listed.

Max Abundance # Total Blocks

Not Indicated 240

1 breeding pair 108

2-10 breeding pairs 211

11-100 breeding pairs 45

101-1000 breeding pairs 5

Number of Total Blocks is the number of blocks for which the indicated abundance is the maximum recorded for the species in the block. Abundance represents the estimated number of breeding pairs in a block.

Habitat Code # Records

Not Indicated 304

FL 5

FLCc 2

FLCs 3

FLH 11

FLHn 5

FLHs 17

FLHs(w) 4

FLM 7

FLMc(w) 4

FUCp 2

FUCp(w) 1

FUH 10

FUH (w) 1

FUHa 2

FUHa(i) 1

FUHo 14

FUHo(e) 1

FUM 3

FUM (w) 1

FUMh 1

FUMp 2

FUMp(w) 1

O 1

OLA 5

OLAc 1

OLAr 1

OLN 4

OLN (w) 1

OLNb 2

OLNm 3

OLU 1

OLW 40

OLW (i) 2

OLW (w) 6

OLWl 67

OLWl(a) 1

OLWl(e) 3

OLWl(i) 4

OLWm 117

OLWr 56

OUA 1

OUAg(w) 2

OUN (i) 1

SLCn 1

SLH 2

SLHc(w) 1

SLHh 1

SLHh(w) 1

SLHn 13

SLHn(w) 5

SLHo 1

SLM 1

SLMn 1

SLMn(w) 1

SUHh 1

SUM 1

URC 1

URR (w) 1

USR 1

UUC (a) 1

UUO 1

Habitat Codes are listed from all records for the species. More than one habitat code may have been recorded in a quad or block for the species. For explanation of habitat codes, see Habitat Codes.

Last edit date: May 2, 2003