The Role of Some Free- Flying & Migratory Birds in The Transmission of Some Virus Diseases to Domestic Fowl in Egypt

Haemagglutination inhibition testing of 435 serum samples of some living trapped migratory and resident free flying birds revealed the natural presence of Newcastle disease haemagglutination inhibition antibodies in Eupopas; Anthus (Pipits); Sylvias CoturFourty thr ee Anthus birds wer e tested, the total positives ofwhich were eleven (more than 25.0%), 7 of which (l6.2%) had a titre over 1/5; representing the second species.The sylvias were 49, eight of which (16. ~%) were positive reactors; three of these(6.0%) had a titre of 1/5.Out of the ninety nine Coturnix tested, fifteen of which IS’. J 70 were positive reactors, ten of which(10%) had a titre over 1/5. The least reactor species was sparrows, where the total positives were 8 (7-.IIf-%’) out of the one hundred and twelve sparrOne single bird (0. s 9 X) showed a titre of 1/10.