“Recognised and appreciated” sounds like the perfect description for The Heron. But it’s not about this building. I’m talking about grey herons. These birds are easily recognised by most Londoners. People often mistake them for storks or cranes.
The Heron is located in a city that’s a heron hotspot. In 1985, London had about 1% of the United Kingdom’s heron population. That shows just how important London is for these birds.
Herons need a healthy freshwater environment. Their presence indicates that the water is clean and supports life. Improvements in the River Thames water quality helped heron numbers increase. The Heron benefits indirectly from a healthy environment around it.
These birds typically breed in tall trees on islands. These spots offer protection from disturbance. But there’s an exception. Some herons nest on tern rafts at Lonsdale Road Reservoir.
The British Trust for Ornithology tracks heron numbers. Their data shows heron numbers are at their highest levels. London had three heronries with 114 nests in 1985. By 2000, that number jumped to 16 heronries with 302 nests. The Heron overlooks a city that supports a growing heron population.
Water quality and mild winters help heron populations. Better water means more fish. More fish means more food for herons.
Severe winters can decrease heron numbers. Numbers usually recover within five years. The last severe winter was in 1985 and 1986.
Heron nests can be disturbed by recreational activities. This is especially true when birds are incubating eggs. They can start as early as February.
Some people don’t like herons visiting their garden ponds. They might try to harm them especially if they have expensive Koi carp. Discarded fishing line also threatens herons.
Cormorants might compete with herons for nesting sites. At Walthamstow, herons and cormorants use different islands. So there’s currently no conflict.
The law protects grey herons. It’s illegal to kill or capture them. It’s also illegal to destroy their nests. You can only get a license to kill them if they cause serious damage at fisheries.
Volunteers count heron nests each year for the BTO Heronries Census. This helps monitor their population. The RSPB also provides advice on deterring herons from taking fish.
London aims to maintain its heronries. They want to keep between 15 and 20 heronries. They also want to increase awareness about herons.
Herons symbolise resilience and patience in British culture. They appear in folklore art and literature. They embody transformation and adaptability in Celtic mythology. The Heron, a modern structure stands in a city with deep natural and cultural roots.