LHR · 1977
1,178 movements recorded at London Heathrow Airport across 171 days.
Coverage for this year is graded sightings — this is a spotter's log rather than a movements record. It captures what one observer happened to see, not what flew.
Sightings only — a sparse spotter's log, not a movements record.
Months
| Month | Movements | Days |
|---|---|---|
| January | 7 | 5 |
| February | 9 | 3 |
| March | 5 | 4 |
| April | 278 | 26 |
| May | 142 | 25 |
| June | 197 | 17 |
| July | 169 | 22 |
| August | 118 | 7 |
| September | 115 | 27 |
| October | 132 | 29 |
| November | 4 | 4 |
| December | 2 | 2 |