| a grain of | Sanderling |
| a dune of | Sandgrouse |
| a grain of | Sandgrouse |
| a gripe of | Sandgrouse |
| a bind of | Sandpipers |
| a cluster of | Sandpipers |
| a contradiction of | Sandpipers |
| a fling of | Sandpipers |
| a hill of | Sandpipers |
| a time-step of | Sandpipers |
| a slurp of | Sapsuckers |
| a mooter of | Scoters |
| a scooter of | Scoters |
| a club of | Sea birds |
| a colony of | Sea birds |
| a concourse of | Sea birds |
| a rookery of | Sea birds |
| a wreck of | Sea birds |
| a constellation of (steller’s) | Sea-eagles |
| a cloud of | Seafowl |
| a flight of | Seafowl |
| a flock of | Seafowl |
| a colony of | Sea-gulls |
| a flock of | Sea-gulls |
| a flotilla of | Sea-gulls |
| a pack of | Sea-gulls |
| a scavenging of | Sea-gulls |
| a screech of | Sea-gulls |
| a squabble of | Sea-gulls |
| a swoop of | Sea-gulls |
| a flight of | Secretary birds |
| a nest of | Secretary birds |
| a eatery of | Seedeaters |
| a hangout of | Shags |
| an improbability of | Shearwaters |
| a doading of | Sheldrakes |
| a droppings of | Sheldrakes |
| a doppling of | Sheldrakes |
| a doading of | Shelducks |
| a dopping of | Shelducks |
| a chain gang of | Shovellers |
| a crew of | Shovellers |
| a graveyard of | Shovellers |
| a abbatoir of | Shrikes |
| a watch of | Shrikes |
| a stand of | Silky flycatchers |
| a strand of | Silky flycatchers |
| a conspiracy of | Skimmers |
| an embezzlement of | Skimmers |
| a scoop of | Skimmers |
| a shishkab of | Skuas |
| an exaltation of | Skylarks |
| an uplifting of | Skylarks |
| a float of | Snake birds |
| a couple of | Snipe |
| a leash of | Snipe |
| a walk of | Snipe |
| a whisp of | Snipe |
| a whisper of | Snipe |
| a winnowing of | Snipe |
| a wisp of | Snipe |
| a volley of | Snipe |
| an assemblage of | Solitaries |
| a summation of | Solitaries |
| an ache of | Soras |
| an expression of | Soras |
| a whinny of | Soras |
| an academy of (Sage) | Sparrow hawks |
| a crew of | Sparrows |
| a flight of | Sparrows |
| a flutter of | Sparrow |
| a host of | Sparrows |
| a meinie of | Sparrows |
| a quarrel of | Sparrows |
| a tribe of | Sparrows |
| an ubiquity of | Sparrows |
| a grove of (American tree) | Sparrows |
| a tournament of (chipping) | Sparrows |
| a blight of (English house) | Sparrows |
| a crue of (field) | Sparrows |
| a den of (fox) | Sparrows |
| a flock of (fox) | Sparrows |
| a slyness of (fox) | Sparrows |
| a plague of (Grasshopper) | Sparrows |
| a reign of (Golden crowned) | Sparrows |
| a poll of (Harris) | Sparrows |
| a humiliation of (House) | Sparrows |
| a subdivision of (House) | Sparrows |
| a bunch of (Olive) | Sparrows |
| a picnic of (Seaside) | Sparrows |
| a choir of (Song) | Sparrows |
| a chorus of (Song) | Sparrows |
| a flock of (Song) | Sparrows |
| a congregation of (Vesper) | Sparrows |
| a liturgy of (Vesper) | Sparrows |
| a canteen of | Spoonbills |
| a measurement of | Spoonbills |
| a runcible of | Spoonbills |
| a service of | Spoonbills |
| a bowl of (Roseate) | Spoonbills |
| a chatter of | Starlings |
| a chattering of | Starlings |
| a cloud of | Starlings |
| a clutter of | Starlings |
| a concentration of | Starlings |
| a congregation of | Starlings |
| a constellation of | Starlings |
| a filth of | Starlings |
| a flight of | Starlings |
| a gathering of | Starlings |
| a hosting of | Starlings |
| a murmuracyon of | Starlings |
| a murmuration of | Starlings |
| a roost of | Starlings |
| a scourge of | Starlings |
| a vulgarity of | Starlings |
| a roost of (European) | Starlings |
| a nest of (Juvenile) | Starlings |
| a flight of | Stids |
| a fling of | Stids |
| a spell of | Stints |
| a sewing circle of | Stitchbirds |
| a clatter of | Storks |
| a cluster of | Storks |
| a filth of | Storks |
| a flight of | Storks |
| a flock of | Storks |
| a muster of | Storks |
| a mustering of | Storks |
| a pair of | Storks |
| a phalanx of | Storks |
| a silence of | Storks |
| a swoop of | Storks |
| a board of | Surfbirds |
| a kahuna of | Surfbirds |
| a flight of | Swallows |
| a gulp of | Swallows |
| a herd of | Swallows |
| a kettle of | Swallows |
| a richness of | Swallows |
| a sord of | Swallows |
| a swoop of | Swallows |
| a foreclosure of (Bank) | Swallows |
| a kettle of (Barn) | Swallows |
| a stand of (Tree) | Swallows |
| a ballet of | Swans |
| a bank of | Swans |
| a bevy of | Swans |
| a drift of | Swans |
| a eyrar of | Swans |
| a fanfare of | Swans |
| a flight of | Swans |
| a flock of | Swans |
| a game of | Swans |
| a herd of | Swans |
| a lamentation of | Swans |
| a mark of | Swans |
| a regatta of | Swans |
| a royal of | Swans |
| a school of | Swans |
| a sounder of | Swans |
| a squadron of | Swans |
| a swannery of | Swans |
| a tank of | Swans |
| a team of | Swans |
| a tranquility of | Swans |
| a “V” formation of | Swans |
| a wedge of | Swans |
| a whiteness of | Swans |
| a whiting of | Swans |
| a fanfare of (trumpeter) | Swans |
| a box of | Swifts |
| a flock of | Swifts |
| a screaming frenzy of | Swifts |
| a swoop of | Swifts |