WBBA American Robin Data

American Robin Map and Data

Max Breeding Status # Quads # Priority Blocks # Total Blocks

Confirmed 1056 1017 1584

Probable 25 29 122

Possible 3 3 123

Species Total 1084 1049 1829

Total in Atlas 1132 1041 3854

Species Percentage 95.76 100.77 47.46

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 459 05/01 09/20 06/27

Feeding Young 646 04/22 08/15 06/16, 06/17

Nest With Young 291 04/25 09/12 06/11

Nest With Eggs 115 04/16 08/01 06/01

Occupied Nest 223 04/07 08/12 06/09

Distraction Display 3 06/08 07/01 06/28

Nest Building 174 04/03 07/15 05/26

Territorial/Courtship 30 04/22 07/26 06/14, 06/15

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 558

1 breeding pair 38

2-10 breeding pairs 173

11-100 breeding pairs 661

101-1000 breeding pairs 364

1000+ breeding pairs 35

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 995

FL 1

FLC 4

FLCc 2

FLCs 4

FLH 8

FLH (w) 1

FLHn 8

FLHn(e) 4

FLHs 36

FLM 5

FLM (e) 2

FLM (w) 1

FLM(w) 1

FLMc 9

FLMc(e) 1

FLMs 4

FLMs(w) 1

FU 7

FU (e) 1

FUC 5

FUCp 5

FUCs 2

FUCs(w) 1

FUH 56

FUH (e) 3

FUHa 42

FUHa(a) 1

FUHa(e) 2

FUHa(g) 1

FUHm 99

FUHm(a) 2

FUHm(e) 13

FUHo 65

FUHo(a) 1

FUHo(e) 8

FUHp 1

FUM 63

FUM (a) 1

FUM (e) 3

FUMh 19

FUMh(a) 1

FUMh(e) 1

FUMp 72

FUMp(e) 6

FUMp(w) 2

FUMs 22

FUMs(e) 1

O 2

OLA 2

OLAg 1

OLAp 3

OLAr(a) 1

OLN 3

OLNb 1

OLNm 4

OLU 2

OLW 1

OLWl 7

OLWm 4

OLWr 3

OLWr(a) 2

OU 8

OUA 17

OUAc 1

OUAg 4

OUAg(e) 2

OUAp 5

OUAr(a) 1

OUN 3

OUU 8

OUU (a) 1

OUU (e) 2

OUU(a) 1

S 2

SL 1

SLCh 1

SLCn 1

SLH 9

SLH (a) 2

SLHc 1

SLHh 6

SLHn 15

SLHn(e) 1

SLHo 7

SLHo(e) 1

SLM 6

SLMc 2

SLMh 3

SLMn 5

SLMo 1

SU 8

SUCh 2

SUCo 1

SUCp 6

SUH 16

SUHc 22

SUHc(e) 1

SUHh 31

SUHn 15

SUHo 19

SUHo(g) 1

SUM 8

SUMc 9

SUMh 5

SUMn 4

SUMo 4

U 4

UR 16

URC 3

URC (a) 3

URO 30

URR 463

URR (a) 13

URR (e) 2

URR(a) 1

URX 4

URX (a) 2

US 3

USC 3

USC (a) 2

USO 27

USR 97

USR (a) 2

UUC 2

UUO 18

UUR 79

UUR (a) 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.

Breeding Code # Records

FL 1

NE 3

Total 4

Confirmed Brown-headed Cowbird records where American Robin was indicated as host species.
MinDate: 05/10 MaxDate: 06/15 for this species.
Total confirmed BHCO Records where host is indicated: 480
Total species indicated as hosts: 64

Last edit date: May 2, 2003