International Brant Monitoring Project
Observation Logs:


2014/2015 Observations

Date Location Observers Count Percent Juveniles Notes
Nov 5 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 18 23
Nov 19 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 173 22
Dec 2 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 40 14
Dec 2 San Diego Shirley Doell 285 NA 1
Dec 3 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 3 21
Dec 11 San Diego Shirley Doell 235 11 2
Dec 11 Coastal Baja, Mexico Pro Esteros 28 N/A 3
Dec 15 Bodega Bay, CA Rod Hug 250 4
Dec 16 Humboldt Bay, CA Steve Rosenberg 1200 5
Dec 19 Coastal Baja, Mexico Pro Esteros 217 N/A 6
Dec 24 Humboldt Bay, CA Steve Rosenberg 3000 7
Jan 1 Coos Bay, OR South Slough NERR 2 na 29
Jan 6 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 91 15
Jan 8 Coastal Baja, Mexico Pro Esteros 132 N/A 8
Jan 12 Tomales Bay, CA Rod Hug 200 10
Jan 12 Bodega Bay, CA Rod Hug 450 9
Jan 14 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 19 20
Jan 21 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 4 26
Jan 30 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 10 19
Feb 1 Bodega Bay, CA Mat Keller 450 19 12
Feb 3 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 40 16
Feb 5 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 58 18
Feb 6 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 3 25
Feb 7 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 374 17
Feb 10 San Francisco Bay Shirley Doell 28 NA 11
Feb 13 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 4 24
Feb 15 Bodega Bay, CA Mat Keller 450 14 13
Feb 18 Delta, B.C. Richard Swanston >680 13% 27
Mar 3 Bodega Bay, CA Rod Hug 500 28
Mar 5 San Francisco Bay Shirley Doell 64 NA 30
Mar 19 Bodega Bay, CA Mat Keller 339 2.9 % 32
Mar 19 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 142 33
Mar 24 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 77 35
Mar 25 Humboldt Bay, CA Steve Rosenberg 4000 34
Mar 27 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 1 36
Mar 31 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 140 37
Apr 2 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 480 38
Apr 9 Delta, B.C. Richard Swanston 5000 N/A 39
Apr 15 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 182 40
Apr 15 San Francisco Bay Shirley Doell 18 NA 42
Apr 23 Humboldt Bay, CA Steve Rosenberg 5000 41
Apr 28 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 89 43
Apr 29 Delta, B.C. Richard Swanston 3000 N/A 44
May 15 Sonora Coast, Mexico Waterbird Monitoring Program, Kino Bay Center 18 45
May 23 Delta, B.C. Richard Swanston 25 46
Jun 2 Humboldt Bay, CA Steve Rosenberg 350 47
Jun 3 Humboldt Bay, CA Steve Rosenberg 750 48
Jun 8 San Francisco Bay Shirley Doell 8 NA 49


Notes:

23 Estero Santa Cruz, Kino Bay, Sonora

22 Estero Santa Cruz, Kino Bay, Sonora

14 Estero Santa Rosa - Mouth

1 My first day of observations in San Diego this season was productive, with 285 brant counted at the mouth of the San Diego River. I didn't have time to do a juvenile count, but will try for that over the next few days. There were quite a few, with several families of at least 3 young, so my first impression is of a productive season for these brant. I noted 6 color bands, four of which were ones I have seen in past seasons. One is a bird I have seen for four seasons, and who is at least 21 years old. He was associating with a banded bird new to me. I will be observing over the next week or so and will report again.

21 Estero Santa Cruz, Kino Bay, Sonora

2 Today was my last day of observations during this vacation in San Diego. At the San Diego River mouth, I found 235 brant, and I counted 15 juvenile brant in the group of 138 on the nearby sand bar. This week, I have seen 15 color banded brant, 9 of which I have sighted in previous years. Two had some kind of electronic device attached to the bands, probably a geolocator. This is the first time I have seen those on brant bands. I also confirmed what I had suspected in past years, that these brant spend time on the ocean; I counted more than 100 out in the kelp beds off Point Loma, and they seemed to be feeding there. Happy Holidays to all brant fans!

3 Today I visited the Punta Banda Estuary in Ensenada, México, with a group of students. We saw about 28 Brant. They were a little far, so we couldn’t estimate juveniles. This is our first sighting in Punta Banda estuary, but I can’t tell when did the first Brant arrive.
Español: Hoy visité el estero de Punta Banda con un grupo de estudiantes de preparatoria y durante nuestro recorrido observamos aproximadamente 45 brantas. Estaban un poco lejos y no fue posible contar juveniles. Este es el primer avistamiento de la temporada en Punta Banda, pero no puedo decir hace cuántos días llegaron las primeras brantas.
Iván Manríquez – Pro Esteros.

4 Birds were spread out. It was high tide.

5 partial vcount

6 Como parte del Conteo Navideño de Aves, que se realiza cada año en el mes de diciembre, Enrique Zamora, colaborador de Pro Esteros, observó 217 brantas en el estero. El mayor número registrado para esta zona hasta la fecha. Fue una sorpresa mirar tantas en el área.
Comments: As part of this year Christmas Birdcount Enrique Zamora, Biologist and friend of Pro Esteros, saw 217 Brant in the estuary. The biggest number of Brant ever seen in this place. This was a great surprise!


7 after desultory november migrations the brant numbers have increased this month-there appears to be a decent number of juveniles this year altho some are quite small-the widgeon population here is higher than i have seen in many years-during hunting season i bagged an adult male brant that was banded over 17 years ago.the arrival of my certificate from the govt is even more desultory than the migration-maybe ill get it in 17 years!-the oldest banded brant i am aware of is 23 years 8 months

29 The wind was blowing from the north and the channel was choppy near Empire on lower Coos Bay, but I was able to pick out 2 Brant and suspect there are many more arriving. I also saw a Heerman's gull which is not too common this time of year.

- Tom Gaskill, South Slough NERR

15 Estero Santa Rosa at three points:

Lagoon: N28.97413 W112.1688
Spit: N28.07373 W112.16932
Mouth: N28.97278 W112.16941


8 I saw the Brant in the Punta Banda Estuary, South of Ensenada city. As I said before this is a good number for Ensenada. I think these Brant may be staying in the Estuary for the rest of the season. I'll keep an eye on them and tell you about it later.
Miré a las brantas en el estero de Punta Banda, al sur de la ciudad de Ensenada. Como dije antes, es un buen número para Ensenada. Pienso que tal vez se queden en el estero por el resto de la temporada. Las mantendré monitoreadas y les diré al respecto más adelante.
Iván Manríquez

10

9

20 Estero Santa Cruz, Kino Bay, Sonora

26 Isla Alcatraz, Kino Bay, Sonora, Mexico

19 Estero Santa Cruz, Kino Bay, Sonora

12 Juv. percent based on 37 birds. Minimum, could have missed some.

16 Estero Santa Rosa at three points:

Lagoon: N28.97413 W112.1688
Spit: N28.07373 W112.16932
Mouth: N28.97278 W112.16941


18 Estero Santa Cruz, Kino Bay, Sonora

25 Isla Alcatraz, Kino Bay, Sonora, Mexico

17 Estero Santa Rosa at three points:

Lagoon: N28.97413 W112.1688
Spit: N28.07373 W112.16932
Mouth: N28.97278 W112.16941


11 I was delighted this afternoon to find 28 brant feeding on herring roe on rocks at my local shoreline park in Point Richmond. It is Ferry Point at Miller-Knox Regional Shoreline, on the eastern shore of the North-central San Francisco Bay. This is very significant as it is the first time I have seen more than a few stragglers here in the bay. One of the flock was banded, (NKR, White on Black, right leg)and I have reported it to the BBL. I hope these birds are the pioneers of many more wintering brant in future years!

24 Isla Alcatraz, Kino Bay, Sonora, Mexico

13 Perceent juv. is a minimum, may have missed some.

27 Feb 14th - 130 total, 27 Juveniles
Today, many Bald Eagles were seen around the area. Over 348 counted

Feb 15th - >200 total, 16 Juveniles
Lots of activity today (Boats Launching, Kite Surfers, picnickers, and Bald Eagles), but the Brant remained to feed on the Ulva there.

Feb 18th - 350 total, 44 Juveniles

28 Most of these birds appear to be stop overs on migration.

30 These 64 continuing brant were in the bay north of Ferry Point, feeding with widgeon on eel grass that coots were harvesting from the bottom. A flock of over 100 brant was reported about 5 miles south off Emeryville on Feb 25. I'm not sure if they were part of the same flock. Brant are normally rare here on the San Francisco Bay, but this year they have been present in significant numbers since the end of January.

32 Most paired. Close, good sun position. % based on 130 brant.

33 All brant observations occurred at Estero Santa Cruz, Bahia de Kino, Sonora, Mexico.

35 Estero Cardonal, Sonora, Mexico, flying over near the mouth of the estuary.

34 many new arrivals today-i couldnt see all of south bay due to fog, so this is just for north one third of south bay-count also does not include north bay and eureka channels but yesterday i saw 62 at the eureka wharfinger building 20 yards from shore merrily eating eelgrass and tame as chickens- and north bay has brant scattered everywhere

36 Estero Tastiota, Sonora, Mexico. Sighted at the mouth of the estuary.

37 Estero Santa Cruz, Bahia de Kino, Sonora, Mexico.

38 Canal de Infernillo (between Isla Tiburon and the mainland) in Sonora, Mexico.

39

40 Estero Santa Cruz, Sonora, Mexico.

42 18 brant were foraging along the shore of Red Rock, a small island in N San Francisco Bay. Since February, brant in flocks up to 100, have been reported in the East Central SF Bay. This is the first year to my knowledge that brant in any significant number have been seen in SF Bay. Yesterday I received the data on a banded brant that I sighted in February at Ferry Point, Richmond. It was a male, banded as an adult in 2000 near Chevak, AK (Yukon Delta region)

41 these were in the north end of south bay this am-we are having a late cold spring here-the north wind was blowing 30 knots and the entrance to the bay was a maelstrom on the outgoing am minus tide-yesterday these birds were circling in big flocks of 2000 or so-this is a sign they are soon to leave-probably the day the wind quits

43 Estero Santa Cruz, Sonora, Mexico.

44 Over the past week there has been consistent sightings of 1500 Brant or more. At least 8 of these individuals on the 29th were Western Arctic grey bellied brant, an incredibly small population of Brant that winter in a relatively small region from Padilla Bay to Boundary Bay. It is also thought to be the smallest population of geese in the world.

45 Estero Santa Cruz, Kino Bay, Sonora, Mexico.

46 On May 23, 2015 Rick Swanston reports that he is still seeing a few brant in southern British Columbia. He visited two sites, the Tsawwassen Ferry Terminal causeway and Light House Park on Point Roberts. He saw 18 at the first site and 7 at the second. He was able to read two bands at Point Roberts, a green band on the left leg with white codes, Y6V and a yellow band with black codes on the right leg, 9heartS.

47 this is south half of south bay only-this is the most brant i have ever seen this late-last week they were flying by flock after flock-very late spring here-wonder if they will make it to yk in time to breed-they can do it in 3 days if conditions are favorable

48 wow

49 These 8 brant were loafing on the shore of Brooks Island in San Francisco Bay.


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