
Large flocks of Canada geese are a familiar sight around lakes, ponds, wetlands, and stormwater facilities across North America. Watching hundreds of birds gather along the shoreline is impressive, but these gatherings also reveal an important connection between wildlife and water quality.
The presence of geese reminds us that water resources are living systems. While engineered features help manage stormwater and improve water quality, they also become habitats where wildlife and infrastructure interact in ways that require thoughtful planning and long-term stewardship
Watch the Field Observation
Join Jennifer as she observes a large flock of Canada geese at Lake Merritt and discusses how wildlife can influence water quality, maintenance, and the long-term performance of stormwater systems.
Wildlife Is Part of the System

Stormwater ponds, lakes, and wetlands are designed to manage water, but they also become attractive habitat for birds and other wildlife. Open water, surrounding vegetation, and nearby grassy areas provide ideal places for geese to gather, rest, and feed.
As communities continue to integrate natural features into urban landscapes, these interactions become increasingly common. Infrastructure no longer functions in isolation, it becomes part of a larger ecological system that includes plants, animals, and people.Understanding these relationships is an important part of designing and managing resilient water resources.
How Geese Can Influence Water Quality

Large concentrations of waterfowl contribute nutrients to lakes and ponds through their waste. Over time, elevated nutrient levels can affect water quality and create conditions that encourage excessive algae growth or reduce dissolved oxygen in the water.
At Lake Merritt, visible aeration equipment serves as a reminder that maintaining healthy water quality often requires ongoing management. Aeration helps improve oxygen levels and supports healthier aquatic conditions, particularly in systems experiencing higher nutrient loads.
Managing water quality is not simply about building infrastructure, it also involves understanding the environmental processes that continue long after construction is complete.
Planning Beyond Construction

Routine maintenance often focuses on vegetation management, sediment removal, or structural inspections. However, wildlife can also influence how stormwater and water resource systems perform over time.
Large bird populations may contribute nutrients, while other wildlife can affect vegetation, shoreline stability, or erosion. Considering these interactions during planning helps create maintenance programs that are better prepared to support long-term environmental performance.
Scientific planning means recognizing that infrastructure exists within dynamic natural systems that continue to evolve.
Sharing Space with Nature

Observing hundreds of geese gathered along the shoreline also raises a broader question about how communities share space with wildlife.
Many urban lakes, parks, and stormwater facilities have become important habitats as cities continue to grow. In some places, development has expanded into areas that were once entirely natural landscapes. These shared environments require thoughtful management that supports both ecological health and public enjoyment.
The goal is not to separate people from nature, but to better understand the balance between environmental stewardship and the many ways communities use these spaces.
Learn more about Watearth at our homepage.














