Crow counted and its control with zinc phosphide bait methods in Giza governorate

الملخص EN

Crows of birds are wide world, with some harmful environmental effects.

It was recorded in many Governorates of Egypt, attacking plants and animals production causing visible losses.

This study was conducted at Al-Saff district, Giza Governorate to survey species and their numbers in different habitats during 2018-2020 and how to control them with zinc phosphide.

Only species, hooded crow, Corovus corone L.

( Aves: Corvidae ) recorded in old agriculture land, reclaimed land and city.

The highest number recorded during spring in May then decrease through autumn, summer and winter the lowest count in February at old agriculture land and reclaimed.

In city the count was highly during autumn in October then reduce in spring, summer and winter the lowest birds recorded in February.

The total numbers increase from 2018 to 2020 and the increase percent were 15.5, 17.9 and 8.8% to each habitat respectively.

The population crow was highly in reclaimed land comparing with old land and city, the average number were 255, 232 and 166 birds to each habitat respectively.

When using fish bait 1% and 0.5% zinc phosphide directly the reduction percent of birds reach to 52.5% and 48.5%.

While the percentage of reduction increased to 54.5% with fish without Zinc phosphide as pre-baiting before zinc phosphide fish bait 0.5%.