The University was renamed as Dr. B. R. Ambedkar University in 1996. The University now caters to the educational need of the seven districts of Agra Division Agra, Aligarh, Mainpuri, Hathras, Firozabad, Etah and Mathura. Besides, the University is proud of having affiliated to it, Sarojini Naidu Medical College, which is one of the oldest and premier Medical Institute of the country.
Birds get angry and fight for reasons other than simply protecting their nests. Sometimes birds fight to protect a general territory rather than a specific nest. When food is scarce, birds become more territorial and won't hesitate to fight other birds that threaten their food supply.
Crows rob nests. The birds chase them so they don't take away their young. My understanding is this is similar to why birds chase other predators, including Crows having a hate relationship with Owls. Owls can take Crows when they sleep.