Stability and Hopf Bifurcation in a Delayed Predator-Prey System with Herd Behavior

Figure 3

The trajectories and phase portrait of system (5). Initial values 𝑥₀=0.4, 𝑦₀=0.39. Parameters 𝑠=1, 𝑐=0.6. Delay value 𝜏=6.049.