Heermann's Gull heermannii

(last update: 23-01-2018 )

Coordinators:
John Cant
Mars Muusse

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1cy June
1cy July
1cy Aug
1cy Sept
1cy Oct
1cy Nov
1cy Dec

2cy Jan
2cy Feb
2cy March
2cy April
2cy May
2cy June
2cy July
2cy Aug
2cy Sept
2cy Oct
2cy Nov
2cy Dec

3cy Jan
3cy Feb
3cy March
3cy April
3cy May
3cy June
3cy July
3cy Aug
3cy Sept
3cy Oct
3cy Nov
3cy Dec

adult Jan
adult Feb
adult March
adult April
adult May
adult June
adult July
adult Aug
adult Sept
adult Oct
adult Nov
adult Dec

2nd > 3rd cycle (3CY) & sub-adult: June

By June these 3CY birds have started the PB3 moult (complete moult in summer from April - August), Outer primaries still old 2nd generation in most birds, with inner primaries being replaced.
Often, the old feathers are very worn and bleached by June.

This page presents both obvious 2nd cycle birds (still old 2nd generation flight feathers), but also sub-adult birds (full adults are now in perfect breeding conditions, and most have nests this time of the year.)

 Heermann's Gull heermannii ?24? PB4 moult (4CY), June, Pismo Beach, California USA. Picture: Alex Abela.
Heermann's Gull heermannii adult?, June 04 2015, Half Moon Bay, California USA. Picture: Alvaro Jaramillo.
Adult or sub-adult.
Heermann's Gull heermannii PB3 moult (3CY), June 09 2017, Pismo Beach, California USA. Picture: Alex Abela.
Heermann's Gull heermannii PB3 moult (3CY), June 08 2015, Pacific Grove,  California USA. Picture: John Cant.
Heermann's Gull heermannii PB3 moult (3CY), June 08 2015, Pacific Grove,  California USA. Picture: John Cant.
Heermann's Gull heermannii PB3 moult (3CY), June 08 2015, Pacific Grove,  California USA. Picture: John Cant.
Heermann's Gull heermannii PB3 moult (3CY), June 09 2018, Santa Barbara, California USA. Picture: Alex Abela.
Heermann's Gull heermannii PB3 moult (3CY), June 09 2018, Santa Barbara, California USA. Picture: Alex Abela.
Heermann's Gull heermannii PB moult sub-adult?, June 28 2016, Pacific Grove, California USA. Picture: John Cant.
Heermann's Gull heermannii PB4 moult (4CY), June 09 2017, Pismo Beach, California USA. Picture: Alex Abela.
Heermann's Gull heermannii PB4 moult (4CY), June 09 2017, Pismo Beach, California USA. Picture: Alex Abela.
Heermann's Gull heermannii PB4 moult (4CY), June 09 2017, Pismo Beach, California USA. Picture: Alex Abela.
Heermann's Gull heermannii PB4 moult (4CY), June 09 2018, Pismo Beach, California USA. Picture: Alex Abela.
Heermann's Gull heermannii PB4 moult (4CY), June 09 2018, Pismo Beach, California USA. Picture: Alex Abela.
Heermann's Gull heermannii PB4 moult (4CY), June 09 2018, Pismo Beach, California USA. Picture: Alex Abela.