Barn Swallow Map and Data

Max Breeding Status# Quads# Priority Blocks# Total Blocks
Confirmed8818361146
Probable434376
Possible384299
Species Total9629211321
Total in Atlas113210413854
Species Percentage84.9888.4734.28
 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# RecordsMin DateMax DateMid Date(s)
Fledged Young235 05/26 08/22 07/07
Feeding Young120 05/23 09/07 07/01
Nest With Young200 05/25 09/11 06/28
Nest With Eggs62 05/15 07/22 06/09, 06/10
Occupied Nest501 05/03 08/17 06/14
Distraction Display2 06/15 07/01
Nest Building113 05/07 08/31 06/02
Territorial/Courtship17 05/05 07/07 06/11
 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 Indicated306
1 breeding pair27
2-10 breeding pairs221
11-100 breeding pairs579
101-1000 breeding pairs176
1000+ breeding pairs12
 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 560
FL 1
FLH 2
FLHs(a) 3
FLHs(w) 2
FUHm 1
FUHo 1
FUHo(w) 1
FUM 3
FUMp 2
O 1
OLA 7
OLA (w) 2
OLAa 2
OLAc 2
OLAp 5
OLAp(a) 4
OLAr(e) 1
OLAx(a) 1
OLN 2
OLNb 1
OLNm 5
OLNm(e) 1
OLU 4
OLW 13
OLW (a) 4
OLW (e) 1
OLWl 17
OLWl(a) 10
OLWl(e) 1
OLWm 21
OLWm(a) 6
OLWr 15
OLWr(a) 25
OLWr(e) 1
OU 3
OUA 61
OUA (a) 3
OUAa 4
OUAc 5
OUAg 7
OUAp 5
OUAp(a) 3
OUAr 1
OUAr(w) 1
OUAx 2
OUN 6
OUN (a) 1
OUN (e) 1
OUU 13
OUU (a) 2
SLH 1
SLHh 1
SLHn 3
SLHn(e) 1
SLHn(w) 1
SLHo(w) 1
SLM 1
SLMh 1
SLMo 1
SLMo(a) 1
SU 1
SUCh 1
SUCo 1
SUH 1
SUHc 2
SUHh 1
SUHn 2
SUHo 4
SUHo(a) 2
SUM 3
SUMn 1
U 1
UR 21
UR (a) 1
URC 13
URC (a) 1
URC (w) 1
URO 2
URO (a) 2
URR 536
URR (a) 176
URR (c) 1
URR (e) 1
URR (g) 1
URR (w) 1
URR(a) 1
URX 11
URX (a) 6
URX (w) 5
USC 2
USC (a) 2
USO 4
USO (a) 1
USR 10
USR (a) 4
USX 2
USX (a) 1
UUC 3
UUC (a) 1
UUO 10
UUO (a) 5
UUO (w) 1
UUR 12
UUR (a) 3
UUX 1
UUX (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.

Last edit date: May 2, 2003