WBBA Common Grackle Data

Common Grackle Map and Data

Max Breeding Status # Quads # Priority Blocks # Total Blocks

Confirmed 827 770 1068

Probable 101 105 168

Possible 65 69 150

Species Total 993 944 1386

Total in Atlas 1132 1041 3854

Species Percentage 87.72 90.68 35.96

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 321 05/02 08/05 06/26

Feeding Young 557 05/09 08/21 06/14

Nest With Young 147 05/04 07/28 06/10

Nest With Eggs 10 05/05 06/16 05/23, 06/02

Occupied Nest 53 04/23 07/29 06/08

Distraction Display 6 06/04 07/08 06/22, 06/25

Nest Building 107 03/27 07/11 05/23

Territorial/Courtship 41 04/14 07/03 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 356

1 breeding pair 43

2-10 breeding pairs 282

11-100 breeding pairs 529

101-1000 breeding pairs 156

1000+ breeding pairs 20

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 621

FL 2

FLC 1

FLC (e) 1

FLCc 3

FLCc(e) 1

FLCs 4

FLCs(w) 1

FLH 7

FLHn 6

FLHn(e) 2

FLHn(w) 1

FLHs 22

FLHs(e) 3

FLHs(w) 3

FLM 9

FLM (e) 1

FLMc 4

FLMc(w) 1

FLMs 2

FLMs(w) 1

FUC 2

FUCp 6

FUCp(e) 1

FUCp(p) 2

FUCs 3

FUH 15

FUH (e) 1

FUHa 4

FUHa(e) 1

FUHa(w) 1

FUHm 9

FUHm(e) 6

FUHo 4

FUHo(e) 3

FUM 10

FUM (w) 1

FUMp 4

FUMp(a) 1

FUMp(e) 2

FUMp(p) 1

FUMp(w) 2

FUMs 5

FUMs(e) 2

FUMs(w) 1

O 1

OL 1

OLA 16

OLA (e) 1

OLAa 1

OLAc 2

OLAg 1

OLAg(e) 1

OLAp 7

OLN (w) 1

OLNb 3

OLNm 4

OLU 1

OLU (w) 1

OLW 16

OLW (e) 1

OLW (w) 1

OLWl 36

OLWl(e) 3

OLWl(i) 2

OLWm 38

OLWr 17

OLWr(a) 2

OLWr(e) 2

OU 4

OUA 64

OUAa 1

OUAa(e) 3

OUAc 3

OUAg 20

OUAg(e) 2

OUAp 9

OUAr 4

OUAs 1

OUAx 2

OUN 7

OUU 17

SL 2

SLC 1

SLCc 2

SLCn 2

SLH 8

SLH (e) 1

SLHh 11

SLHh(w) 1

SLHn 34

SLHn(w) 1

SLHo 3

SLHo(g) 1

SLM 9

SLMc 3

SLMh 2

SLMn 16

SLMo 1

SLMo(w) 1

SU 3

SUC 2

SUCh 6

SUCo 1

SUCp 5

SUCp(w) 1

SUH 10

SUHc 6

SUHh 19

SUHh(e) 1

SUHn 4

SUHn(w) 2

SUHo 18

SUHo(e) 1

SUM 5

SUMc 3

SUMn 3

SUMo 3

SUMo(g) 1

U 3

UR 17

URC 9

URC (a) 1

URO 20

URR 403

URR (w) 1

URX 6

US 2

USO 22

USR 63

UU 1

UUO 13

UUO (w) 1

UUR 45

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.

Breeding Code # Records

FL 1

NY 1

Total 2

Confirmed Brown-headed Cowbird records where Common Grackle was indicated as host species.
MinDate: 05/06 MaxDate: 07/05 for this species.
Total confirmed BHCO Records where host is indicated: 480
Total species indicated as hosts: 64

Last edit date: May 2, 2003