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Pigeon Guillemot Data : Whidbey : Reports

Lake Hancock North - 2018 - Cumulative Survey View

Summer 2018 - Cumulative Counts through 2018-08-26
Colony Wide Data click on any date to see its details
06-1406-2106-2807-0707-1307-2107-2407-3008-0608-1308-2108-26

 counts per survey date
 
# adult PG7075736673108*68597668450
# adult PG (@start)7075655773108*68557668100
# adult PG (@middle)56727366646655405187450
# adult PG (@end)36676850665250595649340
tide+2.1+2.3+2.5+1.9+2.0+0.8-0.3+4.37+0.3+3.8+0.1+4.3
vol hours7.010.510.59.58.510.510.57.58.08.08.04.5

  Observed Burrow Visits
Legend for Burrow Visits Graphical Display:
  • Each row represents one burrow.
  • Each survey-date is represented by two columns
    • (left) VB (observations of visits without prey),
      .. bar height represents # of visits to that burrow
      .. gray background => there was a visit to the burrow on this or a previous survey date
    • (right) FB ( observations of visits with prey).
      .. bar height represents # of prey delivered to that burrow
      .. blue background => there was a prey delivery to the burrow on this or a previous survey date
  • Color-coding of bars
      ( noprey)   ( sculpin)   ( gunnels)   ( other)
     
  • Hint: hover over any bar below to see the underlying data
burrow06-1406-2106-2807-0707-1307-2107-2407-3008-0608-1308-2108-26
S10
S2
2
3
4
5
8
10
11
12
13
14
15
17
18
19
20
23
24
25
total

# of unique burrows visited

VB 13 3 12 - 13 13 8 - - - - -
FB - 1 - 4 4 2 5 4 4 1 - -
Tot 13 4 12 4 13 14 10 4 4 1 - -

For survey notes below, show: entire note content OR just note title

2018-06-14 @ Lake Hancock North

Survey start time: 7:55, Observers: Tom and Betsy McCullough, Rich Yukubousky, Ann Nishimoto
highest PG count today (before 9:00): 70
PG count @start of survey: 70
PG count @middle of survey: 56
PG count @end of survey: 36
Starting Tide : +2.1 feet, direction: O
Total volunteer hours: 7.0
burrownopreysculpingunnelsother
2 4 - - -
3 3 - - -
4 1 - - -
5 4 - - -
8 2 - - -
10 2 - - -
11 3 - - -
12 2 - - -
14 1 - - -
15 2 - - -
17 2 - - -
18 2 - - -
20 6 - - -
total 34 - - -

disturbance - 8:02 unknown (N)

disturbance - 8:46 eagle (End) Eagle flew over south end of colony and those birds returned to normal within 2 minutes but perched in tree on bluff in middle of colony and stayed through end of survey leading to continued disturbance.

survey.note -
survey.note - south end of colony activity

2018-06-21 @ Lake Hancock North

Survey start time: 7:20, Observers: Betsy and Tom McCullough, Rich Yukubousky, Ann Nishimoto
highest PG count today (before 9:00): 75
PG count @start of survey: 75
PG count @middle of survey: 72
PG count @end of survey: 67
Starting Tide : +2.3 feet, direction: I
Total volunteer hours: 10.5
burrownopreysculpingunnelsother
10 - - 1 -
11 1 - - -
19 1 - - -
20 1 - - -
total 3 - 1 -

survey.note - Increasing fog during the hour

2018-06-28 @ Lake Hancock North

Survey start time: 7:50, Observers: Betsy and Tom McCullough, Ann Nishimoto, Rich Yukubousky
highest PG count today (before 9:00): 73
PG count @start of survey: 65
PG count @middle of survey: 73
PG count @end of survey: 68
Starting Tide : +2.5 feet, direction: O
Total volunteer hours: 10.5
burrownopreysculpingunnelsother
S2 3 - - -
2 3 - - -
3 2 - - -
4 4 - - -
5 3 - - -
8 3 - - -
10 1 - - -
11 4 - - -
12 1 - - -
14 2 - - -
18 3 - - -
20 3 - - -
total 32 - - -

disturbance - 8:10 unknown (N)

disturbance - 8:38 unknown (N)

disturbance - 8:43 eagle (Sm)


2018-07-07 @ Lake Hancock North

Survey start time: 7:30, Observers: Betsy and Tom McCullough, Ann Nishimoto, Rich Yukubousky
highest PG count today (before 9:00): 66
PG count @start of survey: 57
PG count @middle of survey: 66
PG count @end of survey: 50
Starting Tide : +1.9 feet, direction: I
Total volunteer hours: 9.5
burrownopreysculpingunnelsother
3 - 1 - -
4 - - 1 -
8 - 1 - -
10 - - 2 -
total - 2 3 -

disturbance - 8:05 eagle (End)

survey.note - Sea otter
survey.note - Activity to bluff near access steps from Teronda West

2018-07-13 @ Lake Hancock North

Survey start time: 7:30, Observers: Betsy and Tom McCullough, Ann Nishimoto
highest PG count today (before 9:00): 73
PG count @start of survey: 73
PG count @middle of survey: 64
PG count @end of survey: 66
Starting Tide : +2.0 feet, direction: O
Total volunteer hours: 8.5
burrownopreysculpingunnelsother
S10 1 - - -
2 2 - - -
3 3 - - -
4 3 - 1 -
5 1 - - -
8 3 - - -
10 1 - - -
11 2 1 - -
12 5 - - -
14 4 1 - -
15 2 1 - -
18 2 - - -
19 1 - - -
total 30 3 1 -

disturbance - 7:31 eagle (Med)

disturbance - 8:02 eagle (N)

disturbance - 8:10 other (N) Rocks falling from cliff, birds briefly scattered

disturbance - 8:14 eagle (End) Eagle flew into south end, disrupted only birds in that area

disturbance - 8:25 unknown (N) Birds briefly flew away, possibly due to large birds (not eagles) in the area


2018-07-21 @ Lake Hancock North

Survey start time: 7:20, Observers: Betsy and Tom McCullough, Ann Nishimoto, Rich Yukubousky
highest PG count today (before 9:00): 108*
PG count @start of survey: 108*
PG count @middle of survey: 66
PG count @end of survey: 52
Starting Tide : +0.8 feet, direction: I
Total volunteer hours: 10.5
burrownopreysculpingunnelsother
S10 1 - - -
S2 - - - -
2 4 - - -
3 3 - - -
4 6 - - -
5 1 - - -
8 2 - - -
11 3 - - -
12 2 - - -
13 2 - - -
14 1 1 - -
18 2 - - -
19 2 - - -
23 1 - - -
24 - - 1 -
total 30 1 1 -

disturbance - 7:58 eagle (End) The disturbance actually started when three deer came onto the beach at the south end of the colony and the birds in that area flew off the bluff into the air. Almost immediately after the birds were in the air, a juvenile eagle flew into the airborne flock which scattered them far out onto the water and those birds never returned to the area through the remainder of the survey. Please note that these only affected the portion of the birds hanging around the south end of the colony--roughly 15-20 out of the total. the birds around the northern burrows remained totally unaffected by any disturbance throughout the survey time.

disturbance - h:mm cause? ()

survey.note - likely inaccurate first count
survey.note - Flurry of activity to burrows last three surveys

2018-07-24 @ Lake Hancock North

Survey start time: 7:20, Observers: Betsy and Tom McCullough, Rich Yububousky, Ann Nishimoto
highest PG count today (before 9:00): 68
PG count @start of survey: 68
PG count @middle of survey: 55
PG count @end of survey: 50
Starting Tide : -0.3 feet, direction: O
Total volunteer hours: 10.5
burrownopreysculpingunnelsother
S10 - - 1 -
S2 - - - -
2 1 - 1 -
3 1 - - -
4 2 - - -
8 - 1 - 1
11 1 1 - -
12 3 - - -
14 1 - - -
15 1 - - -
25 1 2 - -
total 11 4 2 1

disturbance - 7:25 unknown (Sm) Unknown disturbance in south end caused birds to scatter in that area only

disturbance - 7:47 eagle (Med) Most of the birds had returned in 15-20 minutes even though the eagle remained in the tree

disturbance - 8:05 eagle (End) Eagle flew into south end of colony, birds scattered in that area for rest of survey time.


2018-07-30 @ Lake Hancock North

Survey start time: 8:45, Observers: Elizabeth McCullough, Rich Yukubousky, Ann Nishimoto
highest PG count today (before 9:00): 59
PG count @start of survey: 55
PG count @middle of survey: 40
PG count @end of survey: 59
Starting Tide : +4.37 feet, direction: O
Total volunteer hours: 7.5
burrownopreysculpingunnelsother
2 - 1 - -
11 - 1 - -
12 - 1 - -
25 - - 1 -
total - 3 1 -

disturbance - 9:07 eagle (End) Birds were already out in deep water when we arrived for the survey although we could not see any perched eagles or other reasons for them to be far away from shore. A juvenile eagle flew over the colony in the water and perched in a tree just north of the observed portion of the colony and stayed throughour the remainder of the survey. While the eagle was present . The birds flew even farther into deep water and birds that had been on the water north of the main colony flew towards the center of the colony. Two fish deliveries were made during the time in which the eagle remained perched on the tree. Previously, I have observed that fish deliveries in the presence of a perched eagle generally recruit larger numbers of airborne birds to accompany the one delivering, seemingly to distract the eagle from attempts to follow the motion of the delivering bird. However, in both deliveries done today after the eagle arrived, the delivering bird was left to make the delivery unaccompanied. Each time, the delivering bird circled for long periods of time before finally making the delivery.


2018-08-06 @ Lake Hancock North

Survey start time: 7:35, Observers: Anne Nishimoto, Rich Yukubousky, Rachael Pribble
highest PG count today (before 9:00): 76
PG count @start of survey: 76
PG count @middle of survey: 51
PG count @end of survey: 56
Starting Tide : +0.3 feet, direction: I
Total volunteer hours: 8.0
burrownopreysculpingunnelsother
S10 - 1 1 -
8 - 2 1 -
11 - - 2 -
25 - - 2 -
total - 3 6 -

disturbance - 8:23 eagle (Sm)


2018-08-13 @ Lake Hancock North

Survey start time: 8:45, Observers: Betsy McCullough, Rich Yukubousky, Ann Nishimoto
highest PG count today (before 9:00): 68
PG count @start of survey: 68
PG count @middle of survey: 87
PG count @end of survey: 49
Starting Tide : +3.8 feet, direction: O
Total volunteer hours: 8.0
burrownopreysculpingunnelsother
8 - 1 - -
total - 1 - -

disturbance - sometime before 9:02 eagle (End) There was not a sudden change in behavior of the birds who were swimming fairly far off shore when we arrived on the beach but had moved a moderate distance offshore at the north end of the colony by the first count at survey onset. Though there were up to 5 birds at one time waiting with fish to deliver, no deliveries were being made and a few times, birds with fish started to fly but then relocated to deeper water. There was never an en masse flight to deeper water like a typical disturbance but birds were behaving catiously. I did not notice the eagle perched on a tree on the bluff between my northernmost observation station and that of Rich Yukubousky south of me until 9:02 and do not know how long it was perched there. It might have been there from the start and I missed it earlier as it was well camouflaged.One fish delivery was finally made despite the presence of the eagle but birds remained waiting to deliver fish and the eagle remained through completion of the survey. Both Rich and Ann also noted that many birds were carrying fish throughout the survey but not delivering them.

disturbance - 9:33 unknown (End) Birds at south end of colony flew off water to deeper water at 9:33 with no clear cause and this continued at end of survey

survey.note - Fledglings identified

2018-08-21 @ Lake Hancock North

Survey start time: 7:10, Observers: Betsy and Tom McCullough, Ann Nishimoto
highest PG count today (before 9:00): 45
PG count @start of survey: 10
PG count @middle of survey: 45
PG count @end of survey: 34
Starting Tide : +0.1 feet, direction: O
Total volunteer hours: 8.0

no burrow data entered

survey.note - Birds distant from shore, difficult visibility due to smoke and fog

2018-08-26 @ Lake Hancock North

Survey start time: 7:10, Observers: Betsy McCullough, Tom McCullough
highest PG count today (before 9:00): 0
PG count @start of survey: 0
PG count @middle of survey: 0
PG count @end of survey: 0
Starting Tide : +4.3 feet, direction: O
Total volunteer hours: 4.5

no burrow data entered

survey.note - Eagle present entire survey
survey.note - No identifiable PGs seen
survey.note - end of survey for 2018