We present a comprehensive study of a possible \alpha -Cygnid meteor shower .
Based on visual and telescopic observations made by Polish observers we estimate basic parameters of the stream .
Activity of \alpha -Cygnids lasts from around June 30 to July 31 with clear maximum near July 18 ( solar longitude \lambda _ { \odot } = 116.5 ^ { \circ } ) .
Maximal Zenithal Hourly Rates ( ZHRs ) are equal to 3.6 \pm 1.2 .
The structure of the radiant analyzed by radiant software is most compact for geocentric velocity of the events equal to 41 km/s , and for the drift of the radiant ( in units ^ { \circ } /day ) equal to \Delta \alpha = +0.6 \Delta \delta = +0.2 .
Center of the radiant for the moment of maximum is \alpha = 302.5 ^ { \circ } \delta = +46.3 ^ { \circ } .We derive population index r equal to 2.55 \pm 0.14 from magnitude distribution of 738 possible members of the stream .
Comparing the velocity distributions of 754 possible \alpha -Cygnids and 4339 sporadic events by \chi ^ { 2 } and Kolmogorov-Smirnov tests we conclude that both distributions are different with probability very close to 1.0 .

Telescopic observations strictly confirm the results obtained from visual observations .
The smallest values of \chi ^ { 2 } parameter we obtained for the geocentric velocity equal to 40 km/s and for the drift of the radiant ( in units ^ { \circ } /day ) equal to \Delta \alpha = +0.6 \Delta \delta = +0.2 .
The center of the radiant for moment of maximum is \alpha = 304.9 ^ { \circ } \delta = +46.2 ^ { \circ } .

In spite of making many photographic exposures we still have no photographic or video confirmation of the existence of this stream .