WBBA Northern Harrier Data

Northern Harrier Map and Data

Max Breeding Status # Quads # Priority Blocks # Total Blocks

Confirmed 175 130 193

Probable 138 117 172

Possible 199 190 235

Species Total 512 437 600

Total in Atlas 1132 1041 3854

Species Percentage 45.23 41.98 15.57

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 28 06/11 08/15 07/11, 07/15

Feeding Young 118 04/23 08/14 06/30

Nest With Young 14 06/13 07/17 07/01, 07/04

Nest With Eggs 11 05/04 06/09 05/20

Occupied Nest 7 04/24 06/20 06/02

Distraction Display 9 06/04 07/20 06/14

Nest Building 10 04/06 06/15 05/13, 05/15

Territorial/Courtship 36 04/09 07/22 05/17

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 145

1 breeding pair 264

2-10 breeding pairs 189

11-100 breeding pairs 2

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 229

FLHs 1

FLM 1

FUCp(p) 1

FUH 1

FUH (e) 1

FUM 1

OL 1

OLA 7

OLAa 2

OLAg 11

OLAp 5

OLAr 1

OLN 10

OLNb 5

OLNm 48

OLNm(e) 1

OLU 22

OLU (w) 1

OLW 4

OLWm 38

OLWr 2

OU 1

OUA 34

OUA (a) 1

OUAa 17

OUAc 5

OUAg 64

OUAg(e) 1

OUAp 13

OUAr 2

OUAs 3

OUN 26

OUU 83

SL 2

SLH 1

SLHc 2

SLHc(e) 1

SLHn 25

SLHn(e) 1

SLHn(w) 3

SLHo 3

SLM 4

SLMc 1

SLMn 3

SLMo 1

SU 4

SUCc 1

SUCo 2

SUH 1

SUHc 9

SUHh 1

SUHn 7

SUHo 5

SUM 2

SUMc 1

SUMn 1

URR 1

UUR 1

UUR (w) 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