Who is a tertiary consumers at mono Lake that crossed the land bridge?

At Mono Lake, a notable tertiary consumer that crossed the land bridge is the California gull (Larus californicus). These birds primarily feed on smaller fish, insects, and other organisms, placing them at the top of the local food web. Their presence in the region is significant, as they help maintain ecological balance by controlling populations of prey species. The California gull is an example of how species adapted to different environments can traverse land bridges to occupy new ecological niches.